Configuration control (option handling)
10.2 Creating the control data record
Distributed I/O system
174 System Manual, 09/2019, A5E03576849-AJ
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 of the configuration corresponds
to the slot of the server module or last slot of an ET 200AL I/O module (in a mixed
ET 200SP/ET 200AL configuration).
The table below shows the structure of a control data record with explanations of the
individual elements.
Table 10- 2 Configuration control: Structure of control data record 196
Header
3 Version 0
4 Slot 1 of the station master Slot assignment 1 in the
station option
(always 1, because the
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
(with BU cover), enter the slot number
of the module + 128. (Example: mod-
ule as empty slot on slot 3: Enter 131
in the control element)
• If the module does not exist in the
station option, enter 0.
Contains information on whether a new
potential group will be opened in the
station option - by replacing a dark-
colored BaseUnit with a light-colored
BaseUnit.
• If you replace a dark-colored Ba-
seUnit with a light-colored BaseUnit,
enter 1 as additional function.
• If you accept the BaseUnit from the
station master, enter 0 as additional
function.
Additional function for slot 1
6 Slot 2 of the station master Slot assignment in the
Additional function for slot 2
8 Slot 3 of the station master Slot assignment in the
Additional function for slot 3
4 + ((server module
slot - 1) × 2)
Server module slot Server module slot as-
signment in the station
4 + ((server module
slot - 1) × 2) + 1
Additional function for server module slot
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