Replacing A Module Without A Programming Device - Siemens PROFIBUS CP 1542-5 Manual

PROFIBUS interface
The table below shows the terminal assignment of the PROFIBUS interface. The assignment
corresponds to the standard assignment of RS485 interface.
Table 5- 1
Note
PROFIBUS interface
The CP provides no 24 VDC power supply on the PROFIBUS interface. I/O devices (for
example, PC adapter 6ES7972-0CB20-0XA0) are therefore not operational on the interface).
5.3

Replacing a module without a programming device

General procedure
The configuration data of the CP is stored on the CPU. This means that this module can be
replaced by a module of the same type (identical article number) without using a PG.
CP 1542-5
Manual, 11/2014, C79000-G8976-C326-03
Terminal assignment PROFIBUS interface
View
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9
5.3 Replacing a module without a programming device
Signal name
- -
- -
RxD/TxD-P Data line B
RTS Request To Send
M5V2 Data reference potential (from station)
P5V2 Supply plus (from station)
- -
RxD/TxD-N Data line A
- -
Connecting up / commissioning
Designation
21