Siemens SIMATIC ET 200iSP Operating Instructions Manual page 187

● If you install only one electronic module in an ET 200iSP, removing this electronic module
will lead to an ET 200iSP station failure. When you insert the electronic module, the ET
200iSP starts up again.
● All current parameters and identification data of the ET 200iSP are stored in an internal
flash memory in the IM 152. After a module is replaced, the IM 152 automatically transfers
the current parameters and identification data to the new module. This function is always
active on the ET 200iSP and cannot be influenced by the user.
– The current parameters and identification data are retained on the IM 152 even if the
– The default parameters of an electronic module are overwritten.
Requirements
● All modules must be inserted during the startup of the ET 200iSP.
● The removal and insertion of the electronic modules during running operation (RUN state)
is only possible if you have enabled the IM 152 parameter Operation during Preset - <>
Actual configuration.
ET 200iSP
Operating Instructions, 11/2017, A5E00247483-07
7.2 Removing and inserting electronics modules during operation (hot swapping)
power supply for the ET 200iSP fails.
Figure 7-1 Automatic parameter assignment after replacing a module
Note
If you reduce an existing configuration and then extend it again, you should erase the
flash memory before the extension.
The flash memory (parameters and identification data) of the IM 152 is erased when
you set the PROFIBUS address to "0" and then turn the supply voltage of the ET 200iSP
off and on at the Power Supply PS.
Maintenance
187