Siemens SIMATIC ET 200S - Removing and inserting electronic modules during operation

Wiring and Fitting
5-28
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
Removing and inserting electronic modules during operation
ET 200S supports the removal and insertion of modules during operation (during
the RUN operating mode). The ET 200S remains in RUN mode when an electronic
module is removed. The protective conductor connections of the ET 200S are not
interrupted.
Note
• You cannot remove and insert modules during operation unless the
corresponding parameters have been assigned. See Section 8.1
• You can remove and insert modules during operation as of the IM151-1 BASIC,
IM151-1 ST ANDARD (6ES7 151-1AA01-0AB0), IM151-1 FO STANDARD,
IM151-1 HIGH FEATURE, and IM151-3 PN.
• If one module is missing (gap) and the ET 200S is switched on, the station will
not start up (see Section 6.1.6.10 and 6.2.6.3).
• The removal and insertion of modules affects the clocking (equidistance).
If you replace more than one module, only one gap can result.
The following table indicates which modules you can remove and insert under
which conditions:
Table 5-1 Removing and inserting electronic modules
Modules
Removing and
inserting
Conditions
Interface module No -- -- --
Power modules Yes The load voltage must be
switched off.
Digital electronic modules (input) Yes -- -- --
Digital electronic modules (output) Yes The load voltage must be
switched off by means of an
external switch/fuse.
Analog electronic modules Yes -- -- --
4 IQ-SENSE Yes The sensors can also be
replaced during operation.
These are then
parameterized automatically
by the electronic module.