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AST I-O Port Communication

The document describes the I/O ports on a cable connector, including power supply details and pin assignments for the PLC1 port. Key specifications are that each output can handle up to 20mA and total current over all ports cannot exceed 70mA. The PLC1 port uses a 25-pin D-Sub socket and table 3 lists the pin assignments, types (input, output, power), and descriptions. Power for the I/O module comes from the 24V DC input pins on the connector or from the internal 24V supply which has a 70mA maximum load.

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213 views2 pages

AST I-O Port Communication

The document describes the I/O ports on a cable connector, including power supply details and pin assignments for the PLC1 port. Key specifications are that each output can handle up to 20mA and total current over all ports cannot exceed 70mA. The PLC1 port uses a 25-pin D-Sub socket and table 3 lists the pin assignments, types (input, output, power), and descriptions. Power for the I/O module comes from the 24V DC input pins on the connector or from the internal 24V supply which has a 70mA maximum load.

Uploaded by

anand
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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DEPRAG 014651en

Cable
connector

Emergency
Stop
STO 1/STO 2

Typical connection Dongle

6.2.6 I/O ports


6.2.6.1 Power supply for the I/O ports
CAUTION
Each output may only be loaded with a maximum of 20 mA.
The total current for all ports may not exceed 70 mA when using the internal 24V
power supply.
The interfaces must not be disconnected or connected under voltage.

CAUTION
Do not connect or disconnect the ports when voltage is switched on.
If this occurs, invalid signals may appear on the controller for a short time,
amongst other things.

6.2.6.2 PLC1 port


Name: GX2
Plug connection: D-Sub 25-pole socket

NOTE
Program selection via the IO interface is binary coded.
Input program selection 6 5 4 3 2 1 0
Value 26=64 25=32 24=16 22=8 22=4 21=2 20=1

Example:
Input program selection 6 5 4 3 2 1 0
Input assignment 1 0 0 1 1 0 1
Evaluation 64 + 0+ 0+ 8+ 4+ 0+ 1 = 77
This results in program number 77

Pin Name Type on AST12 Description


1 Program selection 0 Input Bit 0 of the program selection
2 Program selection 2 Input Bit 2 of the program selection
3 Program selection 4 Input Bit 4 of the program selection
4 Program selection 6 Input Bit 6 of the program selection
5 Screwdriving cycle active Output A screw assembly is currently active

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DEPRAG 014651en

Pin Name Type on AST12 Description


6 Output 2 Output Output for use in the screwdriving program
7 Input 2 Input Input for use in the screwdriving program
8 Ready Output The system is ready for screwdriving
9 NOK Output The last screw assembly was NOK
10 Emergency stop active Output There is an emergency stop situation
Power supply for the fieldbus for
Power supply fieldbus Power supply
11 uninterrupted supply independent from the
communication port 24V input
ON/OFF switch (GS1) of the controller.
Power supply
12 Power supply 24V
input Input for external power supply of the
Power supply integrated I/O module of the AST12
13 Power supply GND
input
14 Program selection 1 Input Bit 1 of the program selection
15 Program selection 3 Input Bit 3 of the program selection
16 Program selection 5 Input Bit 5 of the program selection
17 System OK Output System is switched on
18 Output 1 Output Output for use in the screwdriving program
19 Input 1 Input Input for use in the screwdriving program
20 Start Input Start signal to start an assembly
21 OK Output Last screw assembly OK
22 External start release Input Input for external start release
Power supply for the fieldbus interface for
Power supply fieldbus Power supply
23 uninterrupted supply independent from the
communication port GND input
ON/OFF switch (GS1) of the controller.
Power supply
24 Power supply 24V Output for power supply of the integrated
output
I/O module of the AST12 via the internal
Power supply 24V supply of the AST12.
25 Power supply GND
output
Table 3: I/O port PLC1 assignment

IMPORTANT
Power supply To use inputs/outputs, the integrated I/O module of the AST12
24V input must be supplied with 24V DC.
24V DC is supplied via pins 12 and 13 on plug connection GX2
(port PLC1).
Power supply Internal 24V DC of the AST12. This output may be loaded with a
24V output maximum of 70 mA.

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