Mounting The Cpu/Interface Module - Siemens SIMATIC ET 200SP System Manual

Installation

4.2 Mounting the CPU/interface module

Installation rules
Observe the following rules:
● Installation starts on the left-hand side with the CPU/interface module.
● After the CPU/interface module or at the start of each potential group, a light-colored
BaseUnit BU..D is installed with incoming supply voltage L+.
If you insert an AC I/O module or an AI Energy Meter as the first I/O module, the first
BaseUnit in the ET 200SP distributed I/O system configuration can be a dark-colored
BaseUnit. The requirement is that you use a CPU or IM 155-6 (as of V3.0).
● BaseUnits BU..B (with dark-colored terminal box) follow this.
● Suitable I/O modules can be connected to the BaseUnits. You will find suitable
combinations of BaseUnits and I/O modules in the section Selecting a suitable BaseUnit
(Page 26)
● The server module completes the configuration of the ET 200SP distributed I/O system.
Note
Mount the ET 200SP distributed I/O system only with disconnected supply voltage.
For fail-safe ET 200SP modules:
Protection from conductive contamination
Taking into account the environmental conditions, the devices must be protected from
conductive contamination.
This can be achieved, for example, by installing the devices in a control cabinet with the
appropriate degree of protection.
4.2 Mounting the CPU/interface module
Introduction
The CPU/interface module connects the ET 200SP distributed I/O system with the fieldbus
and exchanges data between the higher-level controller and the I/O modules.
Requirement
The mounting rail is fitted.
Required tools
3 to 3.5 mm screwdriver (only for mounting and removing the BusAdapter)
42
WARNING
Distributed I/O system
System Manual, 12/2015, A5E03576849-AF