Replacing Modules Of The Ems400S Carrier Controller; Overview; Functionality Of The Ems400S Carrier Controller - Siemens SIMATIC EMS400S Operating Instructions Manual

Maintenance and repairs

6.2 Replacing modules of the EMS400S carrier controller

6.2 Replacing modules of the EMS400S carrier controller
6.2.1

Overview

Only technical personnel is allowed to open or remove the carrier controller for the
replacement of faulty modules.
The following figure shows n open EMS400S carrier controller.
6.2.2

Functionality of the EMS400S carrier controller

Before you start any repairs, check the quality of the signal transmission for communication
between PSB-C module and PSB-S module with the diagnostics unit according to the range
of functions offered by the EMS400S diagnostics unit.
The scope and method of these tests are defined in the operating instructions for the
"EMS400S Diagnostics Unit". These operating instructions are available at:
EMS400S product documentation
(http://support.automation.siemens.com/WW/view/en/68156412/133300)
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Operating Instructions, 09/2013, A5E03474162-02
Carrier controller