Siemens ET 200pro - Replacing a bus module

Maintenance and service
7.5 Replacing a bus module
ET 200pro distributed I/O system
164 Operating Instructions, 03/2013, A5E00335544-08
7.5
Replacing a bus module
Introduction
The bus module represents the mechanical and electrical link in the modular configuration of
ET 200pro. You may replace a defective bus module. The electronic module/ pneumatic
interface module is supplied installed on the bus module.
Requirements
● A bus module may only be disassembled when:
– the electronics/encoder supply 1L+ and the load voltage(s) 2L+ of ET 200pro are shut
down, or
– the connection module of the interface module has been removed.
● The ET 200pro will be out of operation for the duration of this replacement.
Required tools
Cross-tip screwdriver, size 2