RS Room Sensors
Technical Instructions
Rev. 10/5/2011
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Contents
What are RS room sensors? ....................................................................................................... 1
Specifications .............................................................................................................. 2
Rnet Configuration ....................................................................................................... 3
RS Standard............................................................................................................................. 3
Local access port ......................................................................................................... 3
To address an RS Standard ........................................................................................... 4
RS Plus .................................................................................................................................... 4
Slide potentiometer ..................................................................................................... 4
MANUAL ON button ...................................................................................................... 4
OCCUPIED LED ............................................................................................................. 5
Local access port ......................................................................................................... 5
RS Pro ..................................................................................................................................... 5
Display......................................................................................................................... 5
MANUAL ON button ...................................................................................................... 6
WARMER and COOLER buttons ..................................................................................... 6
INFO button ................................................................................................................. 6
Local access port ......................................................................................................... 6
RS Pro-F .................................................................................................................................. 7
MANUAL ON button ...................................................................................................... 7
INFO button ................................................................................................................. 7
MODE button ............................................................................................................... 7
FAN button ................................................................................................................... 7
Wiring and mounting an RS sensor ............................................................................................. 8
Rnet wiring specifications ............................................................................................. 8
To wire and mount an RS sensor ................................................................................... 8
To communicate through the local access port........................................................................... 10
To set up a Local Access connection in WebCTRL ......................................................... 10
Troubleshooting...................................................................................................................... 11
RS Standard or RS Plus .............................................................................................. 11
RS Pro or RS Pro-F ...................................................................................................... 12
2011 Automated Logic Corporation. All rights reserved throughout the world. Automated Logic Corporation, the Automated Logic logo,
WebCTRL, EIKON, BACview, SuperVision, and InterOp are registered trademarks, and Alert is a trademark of Automated Logic Corporation.
BACnet is a registered trademark of ASHRAE. All other brand and product names are trademarked by their respective companies.
What are RS room sensors?
RS Room Sensors are thermistor-based temperature sensors that can be wired to the
Rnet of the following ALC controllers:
LGR line
ME line
SE line
ZN line
WebZONE
The following table lists the 4 models of RS sensors and their features. See the
referenced page for a detailed description of each sensor's features.
Sensor
Features
RS Standard
(page 3)
Local access port
No user control
RS Plus
(page 4)
Slide potentiometer to adjust setpoint
MANUAL ON button to override
schedule
LED to show occupied status
Local access port
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2011 Automated Logic Corporation
Sensor
Features
RS Pro
(page 5)
RS Pro-F
(page 7)
Specifications
LCD display
MANUAL ON button to override
schedule
WARMER and COOLER buttons to adjust
setpoint
INFO button to cycle through zone and
outside air temperatures, setpoints, and
local override time
Local access port
LCD display
MANUAL ON button to override
schedule
WARMER and COOLER buttons to adjust
setpoint
INFO button to cycle through zone and
outside air temperatures, setpoints, and
local override time, plus 4 additional
inputs that can be defined in EIKON
LogicBuilder
MODE button to cycle through custom
programmed modes
FAN button to adjust fan speed
Local access port
Sensor tolerance
Precision Thermistor. Standard accuracy 0.45F (0.25C).
Less than 0.18F (0.1C) drift over a 10 year period.
Sensor range
50F to 95F (10C to 35C)
Power
Supplied by the 4-conductor cable (+12 Vdc @ 210 mA) from
the controller.
Communication
115 kbps
Local access port
For local access to start up and troubleshoot system
Environmental operating
range
32122F (050C), 1090% relative humidity, noncondensing
Mounting
Standard 4x2-in. electrical box using provided 6-32 by 1/2
in. mounting screws.
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Overall dimensions:
Rnet
Configuration
Width:
Height:
Depth:
2-3/4 in. (6.9 cm)
4-3/4 in. (12.1 cm)
5/8 in. (1.6 cm)
An Rnet can consist of any of the following combinations of devices wired in a daisy-chain
or star configuration:
1 RS Plus, RS Pro, or RS Pro-F
14 RS Standards
14 RS Standards, and 1 RS Plus, RS Pro, or RS Pro-F
Any of the above combinations, plus up to 2 BACviews, but no more than 6 devices
total
NOTES
If you use two BACviews, one can be powered by the Rnet, but the other must be
externally powered.
ZN line controllers do not support the BACview.
You must set addresses only on the following Rnet devices:
- RS Standards if you have more than one on the Rnet
- BACviews if you have two on the Rnet
RS Standard
Local access port
See To communicate through the local access port (page 10).
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To address an RS
Standard
The default address of an RS Standard is 1. If the Rnet has multiple RS Standard sensors,
the first sensor retains the address of 1. You must give each additional RS Standard a
unique address on the Rnet. To set the address:
1
Pull the back plate off the sensor, pulling from the bottom first.
Remove the two hexagonal screws that attach the circuit board to the cover plate.
Remove the cover plate.
On the circuit board, set the address jumper to 2, 3, or 4.
Attach the circuit board to the cover plate with the hexagonal screws.
RS Plus
Slide
potentiometer
To raise or lower the zone's setpoint, move the slide potentiometer to WARMER or
COOLER. The maximum you can adjust the setpoint is defined in the Max Adjust field on
the RS sensor microblock's Properties page in WebCTRL.
MANUAL ON
button
Press the MANUAL ON button one time to override the schedule and set the zone to
occupied for the amount of time defined in the Each pulse field on the RS sensor
microblock's Properties page in WebCTRL. Press the button again to incrementally
increase the time. For example, if the Each pulse field is set at five minutes, press the
button once for an occupancy of five minutes, twice for ten minutes, and so on. The
maximum length of time you can override the schedule is defined in the Max Accum field
on the Properties page.
To cancel the override, hold down the MANUAL ON button until the OCCUPIED LED turns
off.
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OCCUPIED LED
The OCCUPIED LED lights when the zone is occupied from a regular schedule or a manual
override.
Local access port
See To communicate through the local access port (page 10).
RS Pro
Display
The display shows occupancy, the local zone temperature, and an alarm bell icon. Celsius
values are to the nearest 0.5 degree; Fahrenheit values are to the nearest full degree.
NOTES
The display shows Occupied when the zone is occupied from a regular schedule or
from a manual override.
The zone temperature that the sensor displays is the sensor's local reading, not the
RS microblock's temperature output.
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MANUAL ON
button
Press the MANUAL ON button one time to override the schedule and set the zone to
occupied for the amount of time defined in the Each pulse field on the RS sensor
microblock's Properties page in WebCTRL. Press the button again to incrementally
increase the time. For example, if the Each pulse field is set at five minutes, press the
button once for an occupancy of five minutes, twice for ten minutes, and so on. The
maximum length of time you can override the schedule is defined in the Max Accum field
on the Properties page.
The display shows the duration of the override in minutes. If the override time exceeds
199 minutes, the display shows the time in hours.
To cancel the override, hold the button down until 0 displays. Wait five seconds for the
display to show the current zone temperature again.
WARMER and
COOLER buttons
To raise or lower the zone's setpoint:
1
Press WARMER or COOLER to display the current average setpoint (the average
between the heating and cooling setpoints).
Press WARMER or COOLER again to raise or lower the setpoint. You can adjust the
setpoint by no more than the amount defined in the Max Adjust field on the RS sensor
microblock's Properties page in WebCTRL.
NOTE Pressing WARMER or COOLER will override an unoccupied schedule and set the
zone to occupied for the amount of time defined in the Each pulse field on the RS sensor
microblock's Properties page in WebCTRL.
INFO button
Local access port
Press the INFO button to cycle through:
the zone temperature
the outside air temperature, if enabled in the control program
the override time, in minutes
the heating setpoint
the cooling setpoint
See To communicate through the local access port (page 10).
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2011 Automated Logic Corporation
RS Pro-F
The RS Pro-F has all the features of the RS Pro (page 5) plus the additional functionality
described for the following four buttons.
NOTE Much of the RS Pro-F's functionality depends on the setup of the RS Zone Sensor
with Fan Control microblock in EIKON LogicBuilder. See the system engineer for
instructions on using these four buttons.
MANUAL ON
button
The Timed Local Override section of the microblock dialog box determines if pressing the
MANUAL ON button sets the zone to occupied for a set amount of time in the same
manner as the RS Pro or sets the zone to continuously occupied.
INFO button
This button cycles through the same information as the RS Pro and up to 4 additional
inputs defined in the Optional Inputs section of the microblock dialog box in EIKON
LogicBuilder.
MODE button
The MODE button lets you cycle through up to 4 operational modes defined with custom
programming in EIKON LogicBuilder. The sensor displays various information for each
mode based on the setup in the Mode section of the microblock dialog box.
FAN button
Press FAN to select the controlled equipment's fan speed. A fan icon on the left side of
the display indicates when the fan is on.
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2011 Automated Logic Corporation
Wiring and mounting an RS sensor
The Rnet communicates at a rate of 115 kbps and should be wired in a daisy-chain, star,
or hybrid configuration.
Rnet wiring
specifications
To wire and
mount an RS
sensor
NOTE Use the specified type of wire and cable for maximum signal integrity.
Description
4 conductor, shielded or unshielded, CMP, plenum rated cable
Conductor
22 AWG (7x0096) bare copper if Rnet has only sensors
18 AWG (7x0152) bare copper if Rnet has a BACview
Maximum length
500 feet (152 meters)
Insulation
Low-smoke PVC (or equivalent)
Color Code
Black, white, green, red
Shielding
If shielded, Aluminum/Mylar shield (100% coverage) with TC
drain wire
UL temperature rating
32167F (075C)
Voltage
300 Vac, power limited
Listing
UL: NEC CL2P, or better
PREREQUISITE The Rnet cable is wired to the controller. The shield wire and the ground
wire should be inserted into the controller's GND terminal.
1
Turn off the controller's power.
Pull the backplate off the RS sensor. You may need to turn the setscrew in the bottom
of the sensor clockwise until you can remove the backplate.
Pull the Rnet communication cable through the wire guide in the backplate.
3.30 in.
(8.38 cm)
Use 2 screws to mount the backplate to the wall or outlet box.
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Partially cut, then bend and pull off the outer jacket of the Rnet cable(s). Do not nick
the inner insulation.
Outer jacket
.25 in.
(.6 cm)
Foil shield
Inner insulation
Strip about .25 inch (.6 cm) of the inner insulation from each wire.
If wiring 1 cable to the RS sensor, cut the shield wire off at the outer jacket, then wrap
the cable with tape at the outer jacket to cover the end of the shield wire.
If wiring 2 cables in a daisy-chain configuration, twist together the shield wires, then
wrap the shield wires with tape.
Insert the other 4 wires into the RS sensor's screw terminal connector. If wiring 2
cables, insert like-colored wires into each terminal.
ALC recommends that you use the
following Rnet wiring scheme:
Connect this
wire...
Red
To this terminal...
+12V
Rnet-
Black
Rnet+
White
Green
Gnd
CAUTION Allow no more than .06 inch (1.5 mm) bare communication wire to
protrude. If bare communication wire contacts the cable's foil shield, shield wire, or a
metal surface other than the terminal block, the sensor may not communicate
correctly.
Attach the sensor's cover and circuit board to the mounted backplate, inserting the
top first.
10 Turn the setscrew one full turn counterclockwise so that the cover cannot be
removed.
11 Turn on the controller's power.
NOTE Use the same polarity throughout the Rnet.
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To communicate through the local access port
You can connect to the Local Access port of the RS sensor to perform test and balance or
to make changes to any device on the network.
PREREQUISITES
A computer with a USB port
A USB Link Kit. See the USB Link Kit Technical Instructions
(http://accounts.automatedlogic.com/download).
NOTE The USB Link Kit driver is installed with WebCTRL v5. But if needed, you can
get the latest driver from http://accounts.automatedlogic.com/download. Install the
driver before you connect the USB Link Kit to your computer.
CAUTION If multiple controllers share power but polarity was not maintained when
they were wired, the difference between the controller's ground and the computer's AC
power ground could damage the USB Link Kit and the controller. If you are not sure of the
wiring polarity, use a USB isolator between the computer and the USB Link Kit. Purchase
a USB isolator online from a third-party manufacturer.
Connect the USB Link Kit to the computer and to the RS sensor's Local Access port.
Connect to
computers
USB port
Connect to
the Local
Access port
USB Link Kit
NOTE If using a USB isolator, plug the isolator into your computer's USB port, and then
plug the USB Link Kit cable into the isolator.
To set up a
Local Access
connection in
WebCTRL
To communicate in WebCTRL, do the following:
1
On WebCTRL's CFG tree, select Connections.
On the Configure tab, click Add.
From the Type drop-down list, select BACnet Local Access.
Optional: Edit the Description.
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Type the computer's Port number that the USB cable is connected to.
NOTE To find the port number, plug the USB cable into the computer's USB port, then
select Start > Control Panel > System > Hardware > Device Manager > Ports (Com &
LPT). The COM port number is beside CP210x USB to UART Bridge Controller.
Set the Baud rate to 115200.
Click OK.
On the View tab, click the drop-down arrow next to your device's network Connection,
then select BACnet Local Access.
Click OK.
10 On the Configure tab, select BACnet Local Access, then click Start.
NOTE If WebCTRL displays an error, make sure the COM port you selected is not in
use. For example, PuTTY may be open and is holding the port open.
11 On the NET tree, select the controller that you are connected to.
12 Click the menu button
, then select Manual Command.
13 Type rnet here in the dialog box, then click OK.
14 On the Properties page, click Module Status. If WebCTRL displays a Modstat report,
WebCTRL is communicating with the controller.
Troubleshooting
Use the following tables to troubleshoot the RS sensor.
RS Standard or
RS Plus
If LED on back of circuit board...
Then...
Is not lit
Sensor has no power
Blinks 1 time per second
Sensor has power, but is not
communicating
Blinks 2.5 times per second
Sensor is correctly wired and
communicating
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RS Pro or
RS Pro-F
If display shows...
Then...
Nothing
Sensor has no power
All display elements
Sensor has power, but is not
communicating
Sensor's controller does not have a
control program
Only the temperature and current status
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12
Sensor is correctly wired and
communicating
2011 Automated Logic Corporation
