Installing And Removing The Expansion Cable - Siemens S7-1200 System Manual

Installation
3.3 Installation and removal procedures
Table 3- 11 Installing the connector
Task
3.3.7

Installing and removing the expansion cable

The S7-1200 expansion cable provides additional flexibility in configuring the layout of your
S7-1200 system. Only one expansion cable is allowed per CPU system. You install the
expansion cable either between the CPU and the first SM, or between any two SMs.
Table 3- 12 Installing and removing the male connector of the expansion cable
Task
64
Procedure
Prepare the components for terminal block installation by removing power from the CPU and
opening the cover for connector.
1. Ensure that the CPU and all S7-1200 equipment are disconnected from electrical power.
2. Align the connector with the pins on the unit.
3. Align the wiring edge of the connector inside the rim of the connector base.
4. Press firmly down and rotate the connector until it snaps into place.
Check carefully to ensure that the connector is properly aligned and fully engaged.
Procedure
To install the male connector:
1. Ensure that the CPU and all S7-1200 equipment are disconnected
from electrical power.
2. Push the connector into the bus connector on the right side of the
signal module or CPU.
To remove the male connector:
1. Ensure that the CPU and all S7-1200 equipment are disconnected
from electrical power.
2. Pull out the male connector to release it from the signal module or
CPU.
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG