Siemens SIMATIC ET 200SP System Manual page 148

Configuration control (option handling)
9.2 Creating the control data record
3. In the data block, create an array that is based on the created PLC data type.
4. In the control data records, enter the slot assignments in the "Start value" column.
The figure below shows the global data block "ConfDB". The data block "ConfDB"
contains an array [0..5] of the PLC_DataType "CTR_REC".
Figure 9-4
Rules
Observe the following rules:
● Slot entries in the control data record outside the station master are ignored by the
CPU/interface module.
● The control data record must contain the entries up to the last slot of the station option.
● Multiple configured slots may not be assigned to the same actual slot. In other words,
each station option slot may be present only once in the control data record.
148
Data block for configuration control
Distributed I/O system
System Manual, 12/2015, A5E03576849-AF