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Behavior of the ET 200PA SMART during module replacement
Table 6-1
Behavior of the ET 200PA SMART when modules are pulled or plugged
Pulling/
Actual = preset
plugging
configuration?
Removing a
–
module
Inserting a
Yes
module
No
See also
Identifier-related diagnosis (Page 96)
Interrupts (Page 105)
6.5
Replacing the bus module
Removing the bus module
Only remove bus modules in de-energized state!
Proceed as follows to remove the bus module:
1. Set the On/Off switch of the power supply module to position 0
( : output voltages 0 V).
2. Remove the modules on the bus module that is to be replaced and on all the bus modules
on the right, as well as the module directly to the left.
3. The bus modules are locked together. On the bus module that is to be replaced, press down
the lock of the bus module on the right, and push the bus module(s) on the right to the right.
4. Press down the lock on the left side of the bus module that is to be replaced and push this
module to the right.
ET 200PA SMART
Operating Instructions, 06/2019, A5E34192013-AB
Behavior of ET 200PA SMART
The IM 650 signals via diagnostics when a module is pulled. The diagnostic event cor‐
responds to the pulled interrupt. The IM 650 also enters the removal of a module in the
identifier-related diagnosis.
When a configured module is plugged, the IM 650 deletes the entry in the identifier-
related diagnostics that the module is no longer being addressed by the IM 650. If the
ET 200PA SMART is in user data mode, then the IM 650 signals a diagnostic event
corresponding to the plugged interrupt. The parameters of the inserted module are
assigned as appropriate and the module is accepted in the ET 200PA SMART.
The IM 650 ignores the inserted module.
The IM 650 signals a diagnostic event corresponding to the plugged interrupt.
In the identifier-related diagnostics, the entry remains after the module has been re‐
moved.
Maintenance and service
6.5 Replacing the bus module
65
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