Siemens SIMATIC ET 200MP User Manual page 27

Special features
Special features you have to observe:
● Configuration control is controlled by the interface module (slot 1/submodule 1). To
address the available data records:
– In STEP 7 V5.5: use the diagnostic address of the interface module.
– In STEP 7 (TIA Portal): use the HW ID of the interface module.
You can find general information on writing a data record, for example, in the STEP 7
online help.
● The control data record is saved retentively in the interface module, so that it is not
necessary to write the control data record 196 again at a restart if the configuration is
unchanged.
● Slot entries outside the configured preset configuration are ignored.
● The control data record can be shortened. It must contain the entries up to the last slot of
the current preset configuration.
● Each real slot may only exist once in the data record.
● A real slot may only be assigned to one configured slot.
● Power supply (PS) modules can also be subject to configuration control. Make sure to
observe the information on maximum configuration (Page 12) and the section on the
power budget in the system manual S7-1500, ET 200MP Automation system
(https://support.industry.siemens.com/cs/ww/en/view/59191792). Particularly for a power
supply (PS) module on slot 0, we recommend that you avoid reconfiguration.
Note
Modified configuration
When you write a control data record with modified configuration, there is a station failure
followed by a restart of the station with the modified configuration.
IM 155-5 PN HF Interface Module (6ES7155-5AA00-0AC0)
Manual, 10/2018, A5E32840985-AB
You can find it in the properties header of the interface module in the hardware
configuration.
You can find it in the PLC tags > Default tag table > System constants. The default
name is "IM155-5PN[Head]". Use the associated "value" for addressing.
4.3 Configuration control (option handling)
Parameter
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