Siemens Simatic S7-1500 / ET 200MP - Feedback Data Record of the et 200 MP Distributed I;O System

Flexible automation concepts
11.2 Configuration control (option handling)
Automation system
246 System Manual, 01/2023, A5E03461182-AK
11.2.2.3 Feedback data record of the ET 200MP distributed I/O system
Operating principle
The feedback data record informs you about the accuracy of the module assignment and
gives you the option of detecting assignment errors in the control data record. The feedback
data record is mapped via a separate data record 197 V2.0.
Slot assignment
The feedback data record exists only when configuration control is configured and always
refers to the maximum quantity framework without interface module, i.e., 31 slots.
The following table shows the slot assignment of the modules:
Table 11- 6 Slot assignment
Slot
Modules
Comment
0
System power supply (optional)
Upstream from interface module
2 - 31 I/O modules/system power supplies, depending on
the station option
Downstream from the interface module
Partial reading of the feedback data record is possible.
Feedback data record
Table 11- 7 Feedback data record
Byte
Element
Code
Explanation
0
Block length
66
Header
1
Block ID
197
2
Version
2
3
0
4
Status slot 0
0/1
Status = 1:
• Module from station master is
inserted in the station option
• Slot is marked as not available
in the control data record
Status = 0:
• Module pulled
• Incorrect module inserted in
the station option*
5
Reserved
0
6
Status slot 2
0/1
7
Reserved
0
:
:
:
64
Slot n status
Maximum slot
65 Reserved 0
* Not possible if the slot is marked as not available.