Maintenance
7-11
Distributed I/O Device ET 200M
EWA-4NEB780600602-06
7.5
Replacing Modules with the ”Module Change During
Operation” Function
Prerequisites
You can replace the modules during operation of the ET 200M once you have done
the following:
Installed the ET 200M on the rail with active bus modules for the ”module
change during operation” function.
Configured the ET 200M for the ”module change during operation” function.
!
Warning
When you insert output modules, uncontrolled system states may occur.
This is also the case when you insert input/output modules at an angle to the bus
modules.
When you insert an output module, the outputs set by the user program
immediately become active.
We recommend that you set the outputs in the user program to ”0” when you
remove an output module.
If modules are removed and inserted incorrectly, neighboring modules may be
affected via the backplane bus.
Removing a Module
Table 7-4
Removing modules with ”module change during operation”
Step
20-Pin Front Connector
40-Pin Front Connector
1.
Undo the module fixing screw(s).
2.
Swing the module up and off the rail.
3.
Open the front door.
4.
Unlock the front connector and pull it off the module (see the figure in
Table 7-1 on page 7-8).
To do this, depress the locking
button (4) with one hand and, with
the other hand, grip the front
connector (4a) at the appropriate
point and pull it out.
Remove the fixing screw from the
middle of the front connector. Pull
the front connector out while
holding the grips.
5.
Remove the labeling strip from the module.
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