Siemens Simantic ET200SP - Control Data Record for an ET 200 SP CPU

Configuration control (option handling)
9.2 Creating the control data record
Distributed I/O system
System Manual, 12/2016, A5E03576849-AG
179
9.2.2
Control data record for an ET 200SP CPU
Slot assignment
The following table shows the possible slots for the various modules for an ET 200SP CPU:
Table 9- 1 Slot assignment
Modules
Possible slots
Comment
CPU
1
Slot 1 is always the CPU
I/O modules 2 - 65 Downstream of CPU
Server module 2 - 66 The server module completes the configuration of the
ET 200SP station after the CPU/the last I/O module.
Control data record
For the configuration control of an ET 200SP CPU, you define a control data record 196
V2.0, which includes a slot assignment. The maximum slot corresponds to the slot of the
server module.
The table below shows the structure of a control data record with explanations of the
individual elements.
Table 9- 2 Configuration control: Structure of control data record 196
Byte
Element
Code
Explanation
0
Block length
4 + (number of slots × 2)
Header
1
Block ID
196
2
Version
2
3
Version
0
4 Slot 1 of the station master Slot assignment 1 in the
station option
(always 1, because the
CPU is always in slot 1)
Control element
Contains the information on which mod-
ule is inserted in which slot.
The value that you need to enter in the
corresponding byte depends on the fol-
lowing rule:
• If the module exists in the station
option, enter the slot number of the
module.
• If the module exists as empty slot
5
Additional function for slot 1
6 Slot 2 of the station master Slot assignment in the
station option
7
Additional function for slot 2
8 Slot 3 of the station master Slot assignment in the
station option