Operating instructions

Object recognition sensor

UK

O2D22x
11 / 2012
706225 / 00
Object recognition sensor O2D22x

Contents
1  Preliminary note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1  Symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2  Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3  Items supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4  Functions and features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5.1  Mounting accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
5.2  Mounting dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5.3  Installation location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6  Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6.1 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
6.2 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.3  External illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.4  External trigger source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.5  Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.5.1 Inputs/outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.5.2  Static selection of the application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.5.3  Pulse-controlled selection of the application . . . . . . . . . . . . . . . . . . . . . 13
7  Operating and display elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.1  LED display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.2.1  Operating indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.2.2  Connection via the operating program . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.2.3  Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.3 Pushbuttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8 Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8.1  Parameter setting on the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8.2  Verify and set the IP address on the unit . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8.3  Adjustable parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8.3.1  Parameter structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8.4  Lock / unlock sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.4.1  Reset device to factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.5  Parameter setting via PC operating program . . . . . . . . . . . . . . . . . . . . . . 20
9 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
9.1  Evaluation mode (normal operating mode) . . . . . . . . . . . . . . . . . . . . . . . . 21
10  Scale drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
11  Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
11.1  Operating distance L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
11.2  Factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

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12  Process data protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

12.1  Configuring the process interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12.2  Communication basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12.2.1  Abbreviations and terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12.2.2  Commands for the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12.2.3  Replies from the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12.3  Protocol versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
12.4  Command types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
12.5  Release trigger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
12.6  Select protocol version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 UK
12.7  Select the application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
12.8  Activate/deactivate result output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
12.9  Transmit the image to the device for evaluation . . . . . . . . . . . . . . . . . . . 27
12.10  Transmit the application data set to the device . . . . . . . . . . . . . . . . . . . 28
12.11  Request the assignment of the application data from the device . . . . . 28
12.12  Request the statistics from the device . . . . . . . . . . . . . . . . . . . . . . . . . . 29
12.13  Request the error code from the device . . . . . . . . . . . . . . . . . . . . . . . . 29
12.14  Request the last image from the device . . . . . . . . . . . . . . . . . . . . . . . . 29
12.15  Request the last result from the device . . . . . . . . . . . . . . . . . . . . . . . . . 30
12.16  Release trigger, evaluate captured image and result output via process
interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
12.17  Request the protocol version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
12.18  Request the device information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
12.19  Request the last "bad" image from the device . . . . . . . . . . . . . . . . . . . 31
12.20  Result message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
12.21  Error codes from the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
13  Maintenance, repair and disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
14 Approvals/standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
15  Note on the software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

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Object recognition sensor O2D22x

1  Preliminary note
1.1  Symbols used

► Instruction
> Reaction, result
[…] Designation of pushbuttons, buttons or indications
→ Cross-reference
Important note
Non-compliance can result in malfunction or interference
Information
Supplementary note

2  Safety instructions
These instructions are part of the device. They contain information and illustrations
about the correct handling of the device and must be read before installation or
use.
Observe the operating instructions.
Non-observance of the instructions, operation which is not in accordance with use
as prescribed below, wrong installation or incorrect handling can affect the safety
of operators and machinery.
The installation and connection must comply with the applicable national and inter-
national standards. Responsibility lies with the person installing the unit.
Only the signals indicated in the technical data or on the device label may be sup-
plied to the connections or wires.

3  Items supplied
1 Object recognition sensor O2D22x
1 Operating instructions "Object recognition sensor O2D22x”, Ident no.: 706225
The device is supplied without installation/connection accessories and software.

3.1  Accessories
www.ifm.com → Data sheet search → e.g. O2D220 → Accessories

4  Functions and features

The sensor uses incident light or backlight to detect the contours of an object and
compares them with the contours of one or several models in a reference image.
Depending on the degree of conformity the output can indicate if a model was
found or which one was found.

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5  Installation
5.1  Mounting accessory
The device is compatible with the mounting accessories of ifm's photoelectric sen-
sors for the O2Ixxx (multicode reader), O2Mxxx (EthernetCamera) series etc.
Example mounting with clamp and bracket
►► Use the mounting accessory E2D101.

UK

1. Focal setter
2. Mounting accessory
3. Object to be recognised
4. Field of view size W X H
5. Operating distance L

Depending on the intended location and type of mounting the following mounting
accessories are available:

Description Art. no.

Mounting set for shaft Ø 12 mm E2D110
(clamp and bracket for types O2Dxxx, O2Mxxx, O2Ixxx)
Shaft, straight Ø 12 mm, length 130 mm, M10 E20938
Shaft, angled Ø 12 mm, length 200 mm, M10 E20940
Mounting set for shaft Ø 14 mm E2D112
(clamp and bracket for types O2Dxxx, O2Mxxx, O2Ixxx)

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Object recognition sensor O2D22x

Description Art. no.

Shaft, straight Ø 14 mm, length 130 mm, M12 E20939
Shaft, angled Ø 14 mm, length 200 mm, M12 E20941

You can find more information about the available accessories at:
www.ifm.com → Data sheet search → e.g. O2D220 → Accessories
or directly
www.ifm.com → Data sheet search → e.g. E2D110

5.2  Mounting dimensions

The device is mounted using the mounting accessories or 2 M4 screws and nuts.
Hole dimensions → Chapter 10 Scale drawing.

5.3  Installation location

►► Mount the sensor in front of or above the area to be monitored.The detectable
field of view size depends on the operating distance → Chapter 11 Technical
Data.
►► Back light or scattered light situations and continuously changing light condi-
tions are to be avoided.
►► Do not position room lights directly facing the camera lens.
►► Position the optional external illumination (e.g. O2D909) opposite the camera
lens.
►► To avoid adverse effects on the image detection, avoid installation in heavily
polluting areas of the machine.
►► The connected cables must be provided with a strain relief.

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6  Electrical connection
NOTE
The unit must be connected by a qualified electrician. Disconnect power before
connecting the unit.

6.1  Wiring

Process interface (1)

UK
M12 plug, A-coded, 8 poles (view on the unit)
1 U+
2 Trigger input
3 0V
  
 
4 Switching output / trigger output
  5 Switching output (ready)

6 Switching output (OUT)
7 Switching output / input 1
8 Switching output / input 2
Parameter/process interface (2)
M12 socket, D-coded, 4 poles (view on the unit)


1 Ethernet TD +
 
2 Ethernet RD +
3 Ethernet TD -
 
 4 Ethernet RD -
S Shield

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6.2  Wiring

A: Process interface

B: Controller e.g. PLC

D C: External trigger

D: External illumination
(optional)
           

  
A
       



 
C B  


Pin Use (factory setting)

Output signal "READY" provides the status of the sensor:
5 "1" after the evaluation has been carried out. "0" as long as the evaluation is being carried out, a
different application is being selected or in case of an internal error (trigger signals are ignored).
Output signal "OUT" provides the result of the evaluation:
6
"0" no matching model "1" matching model

►► For PNP units (e.g. O2D220) use trigger sensors, illumination units and control-
lers with PNP inputs and outputs.
►► For NPN units (e.g. O2D227) use trigger sensors, illumination units and con-
trollers with NPN inputs and outputs.

6.3  External illumination

►► Connect external illumination to the trigger output of the device.

Example Art. no.

Illumination unit, transmitter red light 630 nm O2D909

For information about the a.-m. example see:

www.ifm.com → Data sheet search → O2D909

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 Object recognition sensor O2D22x

6.4  External trigger source

►► Connect an external trigger source (e.g. a diffuse reflection sensor) to the trig-
ger input of the device.
If you use an external trigger source (e.g. a diffuse reflection sensor),
connect the trigger signal to the trigger input of the sensor. If you use ex-
ternal illumination, it must be controlled via the trigger output of the sensor.
Depending on the device setting, one of four configuration files saved in the
sensor can be selected via two switching inputs. Information about the test
result is provided via switching outputs. UK

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Object recognition sensor O2D22x

6.5  Timing diagrams

6.5.1  Inputs/outputs

4.1

4.2

Example: Triggering positive edge

1: Trigger input Trigger signal

0: no action
1: triggering on positive edge
2: READY output Ready signal
0: unit busy, OUT output not valid
1: unit ready for trigger signal, OUT output valid
3: OUT output, Object evaluation
static 0: object evaluation not successful
1: object evaluation successful
Example 1 (dashed line): Example 2 (solid line):last object faulty,
last object OK, OUT = 1 OUT = 0
next object faulty, OUT 1 → 0 next object OK, OUT 0 → 1
next object OK, OUT 0 → 1 next object OK, OUT 1
4 OUT output, Object evaluation
pulsed 0: object evaluation not successful or timeout of pulse length
1: object evaluation successful
Example 4.1: Example 4.2:
both objects OK, OUT = 1 first object OK, OUT = 1
after expiration of tB, OUT = 0 after expiration of tB, OUT = 0
second object faulty, OUT = 0

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The evaluation time tA depends on

●● the size of the field of view selected
●● the model size
●● the smoothing degree
●● the sensitivity
●● the orientation
●● the number of models
Typical evaluation times are between 50 and 800 ms. UK
The pulse length tB can be set between 100 ms and 2000 ms via the PC user
program. For more detailed information about the configuration of the switching
outputs we refer you to the programming manual of the sensor.
www.ifm.com → Data sheet search → O2D220 → Operating instructions

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6.5.2  Static selection of the application

Up to 32 different inspection tasks can be stored in the sensor. With the corre-
sponding unit configuration the first four applications can be selected via the two
switching inputs.
Input 2 Input 1 Application no.
0 0 1
0 1 2
1 0 3
1 1 4

1
0
R R

1
0

1
0

1 - 2 - 3

Example: Selection application 1 → application 2 → application 3

1: Switching input 1 = 0 → 1 → 0
2: Switching input 2 = 0 → 0 → 1
3: READY output
4: Trigger input
A: trigger enabled
B: trigger disabled
5: ID number of the active application

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For the selection of the applications the monitoring time tR and the trigger disable
time tP have to be taken into consideration.
Monitoring time tR: After a change in edges the external selection of the application
does not start before the state of both switching inputs remains stable for 20 ms.
Trigger disable time tP: The trigger input is disabled during the selection of the
application. The disable time depends on:
●● the number of applications on the sensor
●● the number of models in the application to be activated
UK
6.5.3  Pulse-controlled selection of the application
As an alternative to the static selection the selection of the application can also be
pulse-controlled.

1 2 3 4 5

1: Gate signal, switching input 1 = 0 → 1 → 0 (tG = signal active)

2: Pulse signal, switching input 2 or trigger input = 0 → 5 pulses → 0
3: READY output

While there is an active signal on switching input 1 (gate signal), the sensor counts
incoming pulses and activates the respective application.
Number of pulses = ID number of the application
Either the 2nd switching input or the trigger input of the sensor can be used as
pulse input.
For more detailed information about the configuration of the selection of the appli-
cation we refer you to the programming manual of the sensor.
www.ifm.com → Data sheet search → O2D220 → Operating instructions

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7  Operating and display elements

 


 

 

Active LED
3 x LED green Power (ready for operation display)
1
Eth (Ethernet connection status)
Con (connection status to the operating program (software))
Indication of the switching status; lights when the corresponding input or
output is switched.
4 x LED yellow LED 1 status indication switching output 1 / switching input 1
2
LED 2 status indication switching output 2 / switching input 2
LED 3 status indication switching output 3
LED 4 status indication switching output 4
Indication of the evaluation results, parameters, parameter values, war-
3 4-digit alphanumeric display
nings and error messages.
Setting of the parameter values (scrolling by holding pressed; incremental
4 Programming button "Set"
by pressing briefly).
Programming button Selection of the parameters and acknowledgement of the parameter
5
Mode / Enter values.

7.1  LED display

●● LED green Power: ready for operation display
–– lights: ready for operation
–– flashes (20 Hz): device fault
–– flashes (2 Hz): no application on the device
●● LED green Eth: Ethernet connection status
–– lights: connection available
–– flashes: data traffic
●● LED green Con: connection status to operating program
–– lights: connection available
●● LED yellow 1: switching status indication
–– off: switching input 1 / switching output 1 not switched
–– on: switching input 1 / switching output 1 switched
–– flashes (20 Hz): short circuit switching output 1
●● LED yellow 2: switching status indication

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 Object recognition sensor O2D22x

–– off: switching input 2 / switching output 2 not switched

–– on: switching input 2 / switching output 2 switched
–– flashes (20 Hz): short circuit switching output 2
●● LED yellow 3: switching status indication
–– off: switching output 3 not switched
–– on: switching output 3 switched
–– flashes (20 Hz): short circuit switching output 3
●● LED yellow 4: switching status indication UK
–– off: switching output 4 not switched
–– on: switching output 4 switched
–– flashes (20 Hz): short circuit switching output 4

7.2  Display

7.2.1  Operating indicators

Display Description
vNNN Version number of the IO controller software
(1st indication after power on, e. g. v041)
Init Device initialisation after power on
(2nd indication after power on)
nnnn Firmware version, e.g. 1031
(3rd indication after power on)
rEdY Device ready for trigger
(4th indication after power-on if one configuration is active with external triggering.
Device waiting for triggering.)
WAIT Device is busy
nr28 Application successful (number of the application)
run Device waiting for connection, no application active (factory setting)
LOAd Loading an application
donE Loading of application completed
uLoc Keys unlocked
Parameter values can be displayed and changed
Lock Locking the pushbuttons
Lok1 Pushbuttons locked
FWUP Firmware update running

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7.2.2  Connection via the operating program

Display Description
OnLI Connection with the operating program
Parm Parameter setting via operating program
Moni Monitor mode
SerP Connection with the operating program, service report mode

7.2.3  Error messages

Display Description
FAIL Application not successful
ErrD Critical hardware error
ErrP Selection of a non-existing application via switching inputs
SC Short circuit of a switching output
DHCP_noIP No DHCP server found. Both character strings are displayed alternately.

7.3  Pushbuttons

Button Function
MODE/ENTER Change into the parameter setting mode
Selection of the parameters
Acknowledgement of the parameter values
SET Selecting the subparameters
Setting/changing/selecting the parameter values
- incremental by pressing briefly
- hold down to scroll

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8  Set-up
Set-up is carried out via a menu-guided PC operating program. The device stores
up to 32 applications.

8.1  Parameter setting on the unit

Set the parameter values via pushbuttons and display on the device.
The sensor is programmed using the two buttons [Mode/Enter] and [Set].
First activate a parameter with the [Mode/Enter] button, select the required value
with the [Set] button and confirm it pressing again the [Mode/Enter] button. UK
The unit changes to the parameter setting mode when you
►► press [MODE/ENTER] for more than 1 s.

 
>> The first menu item is displayed.
►► Press [MODE/ENTER] several times until the required para-
meter is displayed.
►► Press [SET].
►► The menu item is activated and the current setting is displa-


yed.


►► Keep [SET] pressed.

>> The display flashes, after 5 s with pressed SET button the
display stops flashing.
►► Press [SET] and change setting.
►► Press [Mode/Enter].
>> The change is acknowledged and the previous menu item is
shown again.
If no button is pressed for longer than 15 s, you will get to the next
higher menu item or the evaluation mode.
The device does not operate during use of the pushbuttons.

8.2  Verify and set the IP address on the unit

►► Select the parameter "IP" (IP address) with [MODE/ENTER] and [SET].
>> The IP address is processed automatically and shown in 4 groups (A, B, C, D).
►► Verify the IP address and set with [SET], if necessary.
Changes only become effective after a restart of the unit (power off, power
on).

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Object recognition sensor O2D22x

8.3  Adjustable parameters

Memory location
Select an application. The device can save up to 32 applications. By pressing the SET button
the memory location number is incremented in the display. The current state of the memory
location is visualised in the first digit of the display:
F = memory location available
I = memory location used by an inactive application
A= memory location used by an active application
E = memory location (selected by external selection of the application)
Network operation
Here you set the parameters for network operation.
Network settings via DHCP
If the sensor is to get its network settings via DHCP, select the setting "on" in this menu item.
With the setting "off" the fixed network settings (see next menu items) are used. In the DHCP
mode the sensor must be operated in a network with DHCP server. Otherwise it is not acces-
sible via the operating program E2D200.
Set IP address
Here the IP address of the sensor is set. This setting is used when the sensor does not work
in the DHCP mode.The input is made in the "dotted decimal notation", e.g. 192.168.0.3.
Using the SET button you can select the four groups of the address. The respective group is
visualised by a letter in the first digit of the display.
Set subnet mask
Here the subnet mask of the sensor is set. This setting is used when the sensor does not
work in the DHCP mode.The subnet mask must match the IP address. It is input in the same
way as the IP address.
Set gateway address
Here the gateway address used by the sensor is set. This setting is used when the sensor
does not work in the DHCP mode. It is input in the same way as the IP address.
Set the Ethernet process interface
Here the Ethernet process interface and the version of the process data protocol are se-
lected.
Select the Ethernet process interface
Here you choose between the two settings TCP/IP (TCP) and EtherNet/IP (EIP).
Select the process data protocol version
Here you choose between the four possible versions of the process data protocol (v1, v2, v3,
v4). → Chapter 12.3 Protocol versions.
Access extended functions
Here the extended functions of the sensor are accessed.
Rotate / switch off display
Here you set whether a text is displayed normally (d) or rotated by 180° (rd). You also set
whether the display is to be switched off (oFF) in the evaluation mode.
Reset sensor
Here you reset the sensor to the factory setting.
Firmware version
In this menu item you can enquire about the firmware version of the sensor.

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8.3.1  Parameter structure

UK

PCIS IF TCP TCP

EIP

PrOT v2 v2
v3
v4
v1

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Object recognition sensor O2D22x

8.4  Lock / unlock sensor

Lock sensor
►► Keep [Mode/Enter] and [Set] pressed simultaneously for 10 s.
>> Display changes to uLok.
►► Press [Set].
►► Display changes to Lock.
►► Confirm with [Mode/Enter].
>> The sensor is locked.
Unlock the sensor
►► Keep [Mode/Enter] and [Set] pressed simultaneously for 10 s.
>> Display shows Lok1, changes to Lock after 10 s.
►► Press [Set].
>> Display changes to uLok.
►► Confirm with [Mode/Enter].
The sensor is unlocked, display changes to "run".

8.4.1  Reset device to factory settings

►► Activate the parameter "rES".
►► Press [SET] > 5 s.

8.5  Parameter setting via PC operating program

The PC operating program is described in a separate document → Programming
manual E2D200.
www.ifm.com → Data sheet search → Additional data

20
 Object recognition sensor O2D22x

9  Operation
9.1  Evaluation mode (normal operating mode)
After power-on the device is in the evaluation mode. If an active application is
saved on the device, it carries out its monitoring function and generates output si-
gnals according to the set parameters. The display indicates the current evaluation
result, the yellow LEDs signal the switching status of the outputs or inputs.

10  Scale drawing UK

 
   













 
  



1. Operating and display elements

2. Focal setter
3. Middle of the optical axis

21
Object recognition sensor O2D22x

11  Technical data

11.1  Operating distance L
When selecting the operating distance it has to be taken into account that contour
detection becomes less reliable with decreasing size of the objects. The objects to
be detected should cover at least 5% of the field of view. For the operating di-
stance L depending on the applications please see the following table.
Types O2D220 / O2D227 (normal lens)
Operating distance L [mm] 50 75 100 200 400 1000 2000
Field of view size WxH [mm] 16x12 24x18 32x24 64x48 128x96 320x240 640x480
Resolution [mm] 0.1 0.2 0.3 0.4 0.8 2.0 4.0

Types O2D222 / O2D229 (wide-angle lens)

Operating distance L [mm] 50 75 100 200 400 1000 2000
Field of view size WxH [mm] 33x24 50x36 66x47 132x94 264x189 660x472 1320x945
Resolution [mm] 0.3 0.4 0.5 0.9 1.7 4.0 8.0

Types O2D224 / O2D225 (telephoto lens)

Operating distance L [mm] 50 75 100 200 400 1000 2000
Field of view size WxH [mm] - 15x11 20x15 40x30 80x60 200x150 400x300
Resolution [mm] - 0.08 0.12 0.25 0.52 1.25 2.52

11.2  Factory settings

Device settings
Parameters Factory setting
Device name New sensor
Device location New location
DHCP not active
IP address 192.168.0.49
Subnet mask 255.255.255.0
Gateway 192.168.000.201
XML-RPC port 8080
Video port 50002
Application selection via switching inputs not active
Trigger debouncing not active
Process interface mode TCP/IP
Process interface version 2
Process interface TCP/IP port 50010

22
 Object recognition sensor O2D22x

Application settings
Parameters Factory setting
Models none
Minimum match 80%
Contour tolerance width 4
Number of models 1
Orientation -10°... +10° (operating program)
Device connection 4 Trigger output (with external illumination)
Device connection 5 Switching output, function ready for trigger (Ready)
Device connection 6 Switching output, function all models detected UK
Device connection 7 -
Device connection 8 -
Illumination Internal
Trigger mode Continuous

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Object recognition sensor O2D22x

12  Process data protocol

The process interface ensures communication between the process PC (e.g. PLC)
and the device. A command from the process PC can for example activate trigger
pulses, select applications or provide application results.

12.1  Configuring the process interface

When the Ethernet interface is used, two protocols are available: TCP/IP and
EtherNet/IP. The protocol is selected and configured in the PC operating program.
For more detailed information about the configuration of the process interface we
refer you to the programming manual of the sensor.
www.ifm.com → data sheet search → O2D220 → Operating instructions

12.2  Communication basics

12.2.1  Abbreviations and terms

Abbreviation Description ASCII code (dec)
CR Carriage Return 13
LF Linefeed 10
<> Marking of a placeholder (e.g. <code> is a placeholder for code)
[] Optional argument (possible but not required)

12.2.2  Commands for the device

●● 8-bit ASCII characters are allowed.
●● All commands to the device are terminated with an LF character.
The device ignores all received CR characters.
●● A command to the unit has to be transmitted within 5 s.
Otherwise the unit will cancel command recognition.

12.2.3  Replies from the device

●● All replies by the device are terminated with an CR and an LF character.
●● As a reply to a valid command the device provides the character string
* CR LF (ASCII 42 dec + 13 dec + 10 dec).
●● As a reply to an invalid command the device provides the character string
? CR LF (ASCII 63 dec + 13 dec + 10 dec).
●● If the device is busy, it provides the character string
! CR LF (ASCII 33 dec + 13 dec + 10 dec) as a reply.

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 Object recognition sensor O2D22x

12.3  Protocol versions

The device supports 4 different protocol versions with different message format.
Version Format
V1 <contents>CR LF
V2 <ticket><contents>CR LF
V3 <ticket><length>CR LF<ticket><contents>CR LF
V4 <length>CR LF<contents>CR LF
The replies by the device are preceded by length information; UK
however, not the commands to the device.

<contents> is the command to the device or the reply by the device (e.g. evalu-
ation results).
<ticket> is a character string of 4 digits 0-9, to be interpreted as decimal
number. If a message with a specific ticket is sent to the device, its
reply will contain the same ticket. Ticket 0000 is reserved for messa-
ges sent by the device independently.
<length> is a character string beginning with the letter 'L' followed by 9 digits
to be interpreted as decimal number. This figure indicates the length
of the following data (<ticket><contents>CR LF) in bytes.
Factory setting and reset condition are V2.

12.4  Command types

There are two different types of command to the device: actions and queries. Ac-
tions have the device do something, e.g. take an image and evaluate it.
Requests are used to retrieve information from the device.
The replies by the device are either status information, reply messages or results.
Results are transmitted by the device without a request being sent to the device
before.
The device transmits status information and reply messages as direct reply to
action commands or request commands.

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Object recognition sensor O2D22x

12.5  Release trigger

Command t
Type Action
Reply * Trigger was released, the device captures the image and evaluates
it.
! ●● Currently no application active.
●● The device is busy with evaluation.
●● The device is in an invalid state,
e.g. administer applications.
●● Currently set trigger mode not possible via TCP/IP; EtherNet/IP
●● Too high a trigger rate
Note Result output via the process interface if the output is activated.
Activation of the output → 12.8 Activate / deactivate result output.

12.6  Select protocol version

Command v <digit><digit>
Type Action
Reply * Normal case
! The device does not support the protocol version indicated.
Note <digit><digit>: to be interpreted as two-digit decimal number for the protocol
version. The protocol version is not changed before the reply by the device.

12.7  Select the application

Command c <group><number>
Type Action
Reply * Successful change
! ●● The device is in an invalid state,
e.g. administering applications.
●● Invalid or not existing group or application number.
Note <group>: digit for the application group (always 0 for O2D22X).
<number>: two-digit character string, to be interpreted as decimal number for the
application number.

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 Object recognition sensor O2D22x

12.8  Activate/deactivate result output

Command p <digit>
Type Action
Reply * Successful execution
! ●● No active application.
●● <digit> contains incorrect value.
●● The device is in an invalid state.
Note <digit> is either 0 or 1.
1 enables the result output. UK
0 disables the result output.

12.9  Transmit the image to the device for evaluation

Command i <length><image data>

Type Action
Reply * Normal case
? Invalid length
! ●● No application at present.
●● Application is being edited.
●● The image format (BMP, RAW, etc.) does not meet the specifi-
cations.
●● Invalid image contents (image size, internal image head data).
Note <length>: character string with exactly 9 digits, interpreted as decimal number it
indicates the length of the following image data in bytes.
Image data format according to setting in the operating program. The image
must be available with a resolution of 640x480. With the Raw image format, each
pixel is coded with an 8 bit value, the bmp must be available in 8 bit format.

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Object recognition sensor O2D22x

12.10  Transmit the application data set to the device

Command u <length><group><number><application data set>

Type Action
Reply * Normal case
? Invalid length
! ●● The device is in teach mode or in administrative mode.
●● <application data set> is no valid application.
●● The group/application number is invalid.
●● "Selection of the application" via digital switching inputs is
activated.
Note <length>: character string with exactly 9 digits, interpreted as decimal number it
indicates the length of the following image data in bytes (file length + 3 for group
and number).
<group>: digit for the application group (always 0 for O2D22X).
<number>: two-digit character string, to be interpreted as decimal number for the
application number.

12.11  Request the assignment of the application data from the device

Command a?
Type Request
Reply <number><blank><group><number><blank><group> Normal case
<number><blank>...<group><number>

! No application active on
the device.
Note <number>: character string with 3 digits for the number of applications on the
device as decimal number.
<group>: digit for the application group (always 0 for O2D22X).
<number>: two-digit character string, to be interpreted as decimal number for the
application number.
At first the number of the active configuration is output.
<blank>: individual blank.

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 Object recognition sensor O2D22x

12.12  Request the statistics from the device

Command s?
Type Request
Reply <total><blank><good><blank><bad> Normal case
! No application active on
the device.
Note <total>: total number of evaluations.
<good>: number of "good" evaluations.
<bad>: number of "bad" evaluations.
UK
<blank>: individual blank.
<total>, <good> and <bad> are always character strings with 10 digits, to be
interpreted as decimal number.

12.13  Request the error code from the device

Command E?
Type Request
Reply <code>
Note <code> is the error code, character string with 4 digits, to be interpreted as
decimal number.
Chapter Error codes 12.21

12.14  Request the last image from the device

Command I?
Type Request
Reply <length><image data> Normal case

! ●● Currently no application active.

●● No evaluation carried out.
●● Sensor is working.
Note <length>: character string with exactly 9 digits, interpreted as decimal number it
indicates the length of the following image data in bytes.

Image data format according to setting in the operating program.

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Object recognition sensor O2D22x

12.15  Request the last result from the device

Command R?
Type Request
Reply Message in result format Normal case
→ Chapter result message 12.20.

! ●● Currently no application active.

●● Application is being edited.
●● No results availabe yet.
Note none

12.16  Release trigger, evaluate captured image and result output via pro-
cess interface

Command T?
Type Request
Reply Message in result format Normal case.
→ Chapter result message 12.20.
! ●● Currently no application active.
●● The device is busy with evaluation.
●● The device is in an invalid state, e.g.
administer applications.
●● Currently set trigger mode not possi-
ble via TCP/IP; EtherNet/IP
●● too high a trigger rate
Note The result is always provided via the process interface; with activated and also
non-activated output via the process interface.

12.17  Request the protocol version

Command V?
Type Request
Reply <current><blank><min><blank><max>
<current> two-digit decimal number with current version
<blank> space character
<min> two-digit decimal number with minimum version
<max> two-digit decimal number with maximum version
Note none

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 Object recognition sensor O2D22x

12.18  Request the device information

Command D?
Type Request
Reply <manufacturer><t><article number><t><name><t><location><t><ip>
<subnet mask><t><gateway><t><MAC><t><DHCP><t><port number>
<manufacturer> IFM ELECTRONIC
<article number> article designation and status, e.g. O2D220AC
<name> sensor name as entered in the operating program
<location> sensor location as entered in the operating program UK
<ip> IP address of the device
<subnet> subnet mask of the device
<gateway> gateway address of the device
<MAC> MAC address of the device
<DHCP> 0 if DHCP is disabled, 1 if DHCP is enabled
<t> tabulator character
<port> XML-RPC port number
Note none

12.19  Request the last "bad" image from the device

Command F?
Type Request
Reply <length><image data> Normal case

! ●● Currently no application active.

●● No evaluation carried out or no
error occurred.
●● Sensor is working.
Note <length>: character string with exactly 9 digits, interpreted as decimal number it
indicates the length of the following image data in bytes.
Image data format according to setting in the operating program.

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Object recognition sensor O2D22x

12.20  Result message

The evaluation result can be provided in ASCII or binary format. The output format
is set via the PC operating program.
ASCI format
In the ASCII mode the evaluation result is transmitted in the following format:
<start><result><sc><match><sc><instances>[<sc><model info>][<sc><image
info>]<stop>
Component Description
<start> Start string according to setting in operating program.
<sc> Separator according to setting in the operating program.
<stop> Stop string according to setting in operating program.
<result> Total result, either 'PASS' or 'FAIL' string.
<match> Overall match quality, in the format <digit><digit><digit>.<digit>, for example
‘089.5’ for 89.5% match.
The "overall match quality" corresponds to the object with the worst match.
<instances> Character string with 3 digits (decimal number) for the number of objects found
(instances).
[<model info>] Optional detailed information, only if object detail output has been enabled in the
operating program.
Format:
<model_index><sc><x><sc><y><sc><rot><sc><match_quality>
<model_index> Two-digit model number
<x> Character string with 4 digits, decimal number for X position
of the object (in pixels); zero point left
<y> Character string with 4 digits, decimal number for Y position
of the object (in pixels); zero point top
<rot> Character string with six characters for the orientation of the
object
e.g. +179.0 or –001.3
<match_quality> Match quality, in the format
<digit><digit><digit>.<digit>, for example ‘089.5’ for an 89.5%
match.
[<image info>] Optional image information only if image output in the operating program has
been enabled.
Format:
<format><sc><length><sc><image data>
<format> ‘RAW’ or ‘BMP’ according to the setting of the image format
in the operating program.
<length> 9-digit decimal number for the quantity of image data in
bytes
<image data> Image data in the given format

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 Object recognition sensor O2D22x

Binary format
In the binary mode the evaluation result is transmitted in the following format:
<start byte>< switching outputs><match><instances>[<model info>]
Component Description
<start byte> Start byte: 0x00 (1 byte)
<switching outputs> Status of the switching outputs (SA) after the evaluation
binary value (2 bytes, unsigned short)
Format:
Byte n = 0xXX
UK
bit 7 = 0
bit 6 = 0
bit 5 = 0
bit 4 = SA1
bit 3 = SA2
bit 2 = SA3
bit 1 = SA4
bit 0 = SA5
byte n+1 = 0x00
<match> Overall match quality (in "percent" x 10)
binary value (2 bytes, unsigned short)
The "overall match quality" corresponds to the object with the worst match.
<instances> Total number of the objects found
binary value (2 bytes, unsigned short)
[<model info>] Detailed information about the object found.
Format:
<modell_index><x><y><rot><match_quality>
<model_index> Model number
binary value (2 bytes, unsigned short)
<x> X position of the object (in pixels); zero point left
binary value (2 bytes, unsigned short)
<y> Y position of the object (in pixels); zero point top
binary value (2 bytes, unsigned short)
<rot> Orientation of the object (in "degrees" x 10)
binary value (2 bytes, signed short, two's complement)
<match_quality> Match quality (in "percent" x 10)
binary value (2 bytes, unsigned short)

All binary information is to be interpreted as integer numbers in little-endian

format.

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Object recognition sensor O2D22x

Example binary output:

●● Number of models: 2
●● Number of objects searched for per model: {2}
●● Object detail output active: yes
●● Number of objects found per model: {2}
Output length: 27 bytes
Output:
0x00 0x02 0x00 0xE0 0x03 0x02 0x00 0x01 0x00 0xF4 0x00 0x38 0x01 0x17
0x00 0xE0 0x03 0x01 0x00 0xF4 0x00 0x10 0x00 0x00 0x00 0xE7 0x03
Component Description
0x00 Start byte
0x02 0x00 Switching outputs (SA)
In this example the default assignment of the switching outputs is used:
bit 7 0
bit 6 0
bit 5 0
SA1: 0 (not used)
SA2: 0 (not used)
SA3: 0 (READY signal, during evaluation always 0)
SA4: 1 (all models found: 1, not all models found: 0)
SA5: 0 (not used)
00000010 → 0x02
0xE0 0x03 Overall Match Quality: 99,2 % x 10 = 992 (x03E0)
0x02 0x00 Total number of the objects found: 2
0x01 0x00 Model number: 1
0xF4 0x00 X position of the object: 244 (x00F4)
0x38 0x01 Y position of the object: 312 (x0138)
0x17 0x00 Orientation of the object: 2,3 ° x 10 = 23 (x0017)
0xE0 0x03 Match Quality: 99,2 % x 10 = 992 (x03E0)
0x01 0x00 Model number: 1
0xF4 0x00 X position of the object: 244 (x00F4)
0x10 0x00 Y position of the object: 16 (x0010)
0x00 0x00 Orientation of the object: 0° x 10 = 0 (x0000)
0xE7 0x03 Match Quality: 99,9 % x 10 = 999 (x03E7)

34
 Object recognition sensor O2D22x

12.21  Error codes from the device

Definition SENSOR_NO_ERRORS
Numeric value 0
Description No errors
Solution/Workaround –

Definition SENSOR_NO_ACTIVE_CONFIG
Numeric value 0100
UK
Description No application is currently loaded in the sensor.
Solution/Workaround Some commands need a current application. If this is not the case, an error
occurs.

Definition SENSOR_INVALID_PARM
Numeric value 0105
Description Invalid input parameter
Solution/Workaround Read the command documentation to send the required information to the
sensor.

Definition SENSOR_INVALID_STATE
Numeric value 0108
Description The sensor is in an operation mode which does not permit the execution of
commands.
Solution/Workaround Check the command documentation to see when the command can be execut-
ed.

Definition SENSOR_ERR_NO_MEM
Numeric value 0110
Description Fatal internal error.
Solution/Workaround Reboot the sensor.

Definition SENSOR_CONFIG_NOT_FOUND
Numeric value 0902
Description Application to be activated not found.
Solution/Workaround Check whether the application number is correct. Check also if the application
can be edited using the PC Software.

Definition SENSOR_INVALID_TRIGGER_MODE
Numeric value 1000
Description It is not possible to trigger the sensor because the trigger function via TCP/IP;
EtherNet/IP is not activated.
Solution/Workaround Review the sensor configuration to change the sensor trigger mode.

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Object recognition sensor O2D22x

Definition SENSOR_OBJECT_IMAGE_INVALID
Numeric value 1300
Description Internal fault during the image transmission from/to the sensor.
Solution/Workaround Check which is the required image format and if all parameters for the results via
TCP/IP are correct. In case of a problem during the transmission of information,
check whether the information to be sent is correct.

Definition SENSOR_RESULT_ID_NOT_AVAILABLE
Numeric value 1600
Description The user tries to obtain a result although no results are available in the sensor.
Solution/Workaround –

Definition SENSOR_CURRENTLY_DECODING
Numeric value 1601
Description The command cannot be executed because the sensor is currently decoding.
Solution/Workaround Try to execute the command again.

Definition SENSOR_IMAGE_FORMAT_MISSMATCH
Numeric value 1602
Description An image is uploaded to the sensor for evaluation. The format detected does not
match that of the currently activated application.
Solution/Workaround Edit the running application to check which is the required image format.

Definition SENSOR_CONFIG_SWITCHING_ACTIVE
Numeric value 1603
Description It is not possible to upload an application to the sensor if the external selection
of the application is activated.
Solution/Workaround Use the PC Software to deactivate the external selection of the application.

Definition SENSOR_TRIGGER_NOT_AVAILABLE
Numeric value 1604
Description The user sends a trigger via TCP/IP; EtherNet/IP to the device. Due to an inter-
nal fault the sensor cannot process the trigger.
Solution/Workaround This error code shows a sensor failure. Normally the sensor tries to remedy the
failure itself. If this error occurs again, reboot the sensor. When the trigger is
reduced, this fault may be prevented.

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 Object recognition sensor O2D22x

13  Maintenance, repair and disposal

►► Keep the lens window free from soiling.
Soiling may considerably affect the reading result!
►► To clean the lens window, do not use any detergents or solvents which might
damage the front glass.
►► Do not open the housing as the device does not contain any components which
can be repaired by the user. The device must only be repaired by the manufac-
turer.
►► Dispose of the device in accordance with the national environmental regulati- UK
ons.

14  Approvals/standards
The CE Declaration of Conformity is available at:
www.ifm.com → Data sheet search → e.g. O2D220 → Approvals

15  Note on the software

This unit contains (maybe modified) Open Source software, which is subject to
special licensing terms.
For copyright information and licensing terms please refer to:
www.ifm.com/int/GNU
For software subject to the GNU General Public License or the GNU Lesser
General Public License the source code can be requested against payment of the
copying and shipping costs.
The software E2D200 version 3.0 is required as of firmware version 1030.

The software is available at:

www.ifm.com → Data sheet search → e.g. O2D220 → Download/Software.

37