Siemens SIMATIC S7-1500 System Manual page 105

Flexible automation concepts
8.3 Configuration control
Actual configuration with missing module
The specified configuration contains all modules that can be present in a final expansion
stage.
The module that is inserted in slot 3 in the specified configuration is missing in the real
expanded configuration. For this reason, slot 3 must be coded in the control data record
accordingly with "FF
①
Module is missing in the real configuration
104
" (= not present).
H
S7-1500 Automation System
System Manual, 02/2014, A5E03461182-AB