Siemens SIMATIC S7-1500 System Manual page 149

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.
● Each slot of a station option may only be present once in the control data record.
● Each slot of a station option may only be assigned to one slot in the station master.
● System power supplies (PS) can also be subject to configuration control.
Not e
Conf iguration c ontrol f or system power supplies
In the case of a configuration (station option) loaded using a data record, STEP 7 does
not automatically check compliance with the power budget.
Ensure that the power supplied in each power segment of the station option is greater
than or equal to the power drawn.
You can find additional information in the section Power balance calculation (Page 45).
Using communication m odules
● Point-to-point communication modules:
Point-to-point communication modules can be used without any restrictions for the
configuration control.
● PROFINET/Ethernet and PROFIBUS communication modules:
CPUs as of firmware version V1.7 support configuration control when using
PROFINET/Ethernet or PROFIBUS communication modules. If PROFINET/Ethernet or
PROFIBUS communication modules, such as a CM 1542-5 (DP master or DP slave) are
inserted in the central configuration, these communication modules cannot be influenced
by the configuration control. You must therefore leave these modules in the slots
preassigned in the station master and enter the slot numbers from the station master in
the control data record ("Station option slot = Station master slot"). In a station option, all
slots up to the communication module furthest from the CPU must be present in the
control data record. Maximum flexibility is achieved by inserting the communication
modules directly to the right of the CPU.
Automation system
System Manual, 09/2016, A5E03461182-AD
Flexible automation concepts
9.2 Configuration control (option handling)
149