Pin Assignments Of The - Siemens S5-155U System Manual

Pin assignments of the PG
submodule
8
15
9
1
System Manual
C79000-B8576-C199-03
Given in the following table are the pin assignments of the 15-pin
subminiature D-type connector in the front plate of the PG submodule:
Pin Designation
1 Housing/GND/GND
ext
2 - RxD
3 VPG + 5 V_
4 +24 V from bus
5 0 V GND/GND
int
6 + TxD
7 - TxD
8 Housing/GND/GND
ext
9 + RxD
10 24 V GND
11 20 mA
12 0 V GND/GND
int
13 20 mA
14 VPG + 5 V_
15 0 V GND/GND
int
î : From partner to CPU
→ : From CPU to partner
Interface Submodules
Current Remarks
Direction
→
←
→
←
←
Current return
→
Current source, transmitter
→
Current source, receiver
5
5 - 69