Siemens S7-400 User Manual

Networking
5-19
S7-400 and M7-400 Programmable Controllers Hardware and Installation
A5E00069481-04
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
(6ES7 972-0BA20-0XA0)
• Bus connector with PG connector
(6ES7 972-0BB20-0XA0)
Appearance (6ES7 972-0B.20 ...)
Screws for
mounting on
station
PG connector (only with
6ES7 972-0BB20-0XA0)
9-pin sub. D male connector
for connection to MPI or
PROFIBUS-DP interface
Housing screw
Switch for
terminating
resistor
Clamp hinge for vertical
or 30° cable routing
Figure 5-11 Bu s connector

Siemens S7-400 Specifications

General

Product type designation	S7-400
Protection Class	IP20
CPU Type	Various (e.g., CPU 412, CPU 414, CPU 416, CPU 417)
Digital Inputs	Depends on configuration and modules used
Digital Outputs	Depends on configuration and modules used
Analog Inputs	Depends on configuration and modules used
Analog Outputs	Depends on configuration and modules used
Communication Interfaces	MPI, PROFIBUS, PROFINET
Programming Languages	STEP 7 (STL, LAD, FBD, SCL, GRAPH)
Power Supply	24V DC or 120/230V AC (depending on the power supply module).
Operating Temperature	0°C to 60°C
Relative Humidity	5% to 95% (non-condensing)
Redundancy	Supported (with specific CPUs and configurations)
Mounting Type	Rack mounting
Memory	Up to several MB (depends on CPU model)