Table B- 2 Pin Assignment For The 9-Pin Sub D Female Connector Of The Integrated Interface Of The Cp 341-20Ma-Tty - Siemens Simatic S7-300 CP 341 User Manual

Connecting cables
B.2 20 mA TTY interface on the CP 341-20mA-TTY
B.2 20 mA TTY interface on the CP 341-20mA-TTY
Pin assignment
The table below shows the pin assignment for the 9-pin sub D female connector in the front
panel of the CP 341-20mA-TTY.
Table B- 2 Pin assignment for the 9-pin sub D female connector of the integrated interface of the CP 341-20mA-TTY
Female on Pin
CP 341-20mA-TTY
*
1
2
3
4
5
5
9
4
8
6
3
7
2
7
6
1
8
9
* View from the front
228
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Designation Input/output
TxD- Output
20 mA - Input
20 mA + (I ) Output
1
20 mA + (I ) Output
2
RxD + Input
-
-
RxD - Output
TxD + Input
CP 341 Point-to-Point Communication, Installation and Parameter Assignment
Meaning
Transmit data
24 V ground
20mA current generator 1
20mA current generator 2
Receive data +
Receive data -
Transmit data +
Manual, 09/2008, A5E02191071-01
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