Installation - Siemens SIMATIC ET 200SP Manual

Supplements to the "ET 200SP Distributed I/O System" System
Manual
Forming potential groups
Basics
Forming potential groups when using 2x BaseUnits
A potential group formed exclusively of 2x BUs may have an unused module slot that you can use as a reserve slot.
Configure this as an empty slot. If you are configuring an empty slot on a light BaseUnit, set the "Potential group" parameter
to "Enable new potential group (light BaseUnit)", e.g. via configuration control (option handling). Cover the empty slot with a
BU cover (6ES7133-6CV15-1AM0). Empty slots are supported by every ET 200SP head station.
Alternatively, the potential group can also be configured with mixed use of a 1x BaseUnit without empty slot.

Installation

Installing 2x BaseUnits for I/O modules
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
Installing 2x BaseUnit
To install a 2x BaseUnit, follow these steps:
1. Install the 2x BaseUnit on the mounting rail.
2. Swivel the 2x BaseUnit backwards until you hear it click into the mounting rail.
3. Slide the 2x BaseUnit parallel to the left until you hear it click into the preceding CPU/interface module or BaseUnit.
Figure 6 Installing 2x BaseUnit
Product Information on 2x BaseUnit
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