Installing Baseunits - Siemens SIMATIC ET 200SP System Manual

Removing a CM DP
The CPU and the CM DP are wired and BaseUnits are located to its right.
To remove the CM DP communication module, follow these steps:
1. Switch off the supply voltage on the CPU.
2. Press the mounting rail release button on the first BaseUnit and, at the same time, move
the CPU and the CM DP parallel to the left until they detach from the rest of the module
group (clearance about 16 mm).
3. Press the mounting rail release button on the CM DP and move it to the right until it
detaches from the CPU (clearance about 8 mm).
4. While pressing the mounting rail release button on the CM DP, swivel the CM DP off of
the mounting rail.
Note
It is not necessary to remove the bus connector from the CM DP unless you have to replace
the CM DP.
4.4

Installing BaseUnits

Introduction
The BaseUnits are used for electromechanical connection between the individual ET 200SP
components. They also provide terminals for connecting external sensors, actuators and
other devices.
Requirements
The mounting rail is fitted.
Required tools
3 to 3.5 mm screwdriver (only for dismantling the terminal box and the encoding element)
Distributed I/O system
System Manual, 12/2015, A5E03576849-AF
Installation
4.4 Installing BaseUnits
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