Bus Connectors; Bus Connector - Siemens SIMATIC S7-400 Installation Manual

5.6

Bus Connectors

Purpose of the Bus Connector
The bus connector is used to connect the PROFIBUS-DP bus cable to the MPI or
PROFIBUS-DP interface. In this way, you establish the connection to other nodes.
There are two different bus connectors:
• Bus connector without PG connector
6ES7972-0BA12-0XA06
6ES7972-0BA41-0XA0
6ES7972-0BA50-0XA0
6ES7972-0BA60-0XA0
6ES7972-0BA30-0XA0
• Bus connector with PG connector
6ES7972-0BB12-0XA0
6ES7972-0BB41-0XA0
6ES7972-0BB50-0XA0
6ES7972-0BB60-0XA0
Appearance (6ES7972-0B.20 ...)
Screws for
mounting on
station
Switch for
terminating
resistor
PG connector (only with
6ES7 972-0BB20-0XA0)
Figure 5-11 Bus connector
Automation System S7-400 Hardware and Installation
A5E00850741-01
9-pin sub. D male connector
for connection to MPI or
PROFIBUS-DP interface
Housing screw
Clamp hinge for vertical
or 30° cable routing
Networking
5-19