Bus Connector With Order Number 6Es7 972-0B.20; Pin Assignment Of The 9-Pin Sub-D Male Adapter - Siemens SIMATIC S5 Manual

Mechanical design The bus connector with the order number 6ES7 972-0B.20... is illustrated
(6ES7 972-0B.20 below:
...)
Screws for se-
curing to station
Figure 5-7
Pin assignment of The pin assignment of the 9-pin sub-D male adapter is:
sub-D adapter
Table 5-3
*
: The assignment of pin Nos. 1, 2, 7 and 9 corresponds to that of the connected device.
ET 200 Distributed I/O System
EWA 4NEB 780 6000-02a
Routing cables; connecting and installing bus connectors
Switch for
terminating resistor
Prog. connector adapter
(6ES7 972-0BB20-0XA0
only)

Bus connector with order number 6ES7 972-0B.20 ...

Pin assignment of the 9-pin sub-D male adapter

View Pin No. Signal
*
1 –
*
2 –
5 5
3 RxD/TxD-P
9 9
4 4
4 RTS
8 8
3
5 M5V2
7 7
6 P5V2
2
6 6
*
7 –
1 1
8 RxD/TxD-N
*
9 –
9-pin sub-D male
adapter for connection
to station
Housing screw
Latching hinge for
right angle or
30 - cable output
Designation
–
–
Data line B
Request to send
Data reference potential (from station)
Supply plus (from station)
–
Data line A
–
5
5-17