Siemens Simantic ET200SP - Reassigning Parameters During Operation

Commissioning
10.8 Reassigning parameters during operation
Distributed I/O system
220 System Manual, 12/2016, A5E03576849-AG
10.8
Reassigning parameters during operation
Introduction
You have the option of reassigning the parameters for the ET 200SP I/O modules during
operation.
Changing parameters during operation
You make the parameter settings of the I/O modules using data records. Each I/O module
has a separate data record. The instruction "WRREC" applies the changed parameters to
the I/O module.
If you are using the CPU as an I-device, you reassign the parameters of the I/O modules via
the I-device.
Note
If you write data records from the user program to the modules of the distributed I/O, make
sure that these modules actually exist and are
available. You can evaluate OB83 for this
purpose. After inserting a module, the CPU does not call OB83 until the module has started
up and its parameters are assigned. This ensures the execution of the data record
operations without errors.
Note
You n
eed to transfer the new parameters with the "WRREC" instruction after a POWER
OFF/POWER ON of the ET
200SP.
Instruction for parameter assignment
The following instruction is provided for assigning parameters to the I/O module in the user
program:
Instruction
Application
"WRREC"
Transfer the modifiable parameters to the addressed ET 200SP module.
Error message
In the event of an error, the following return values are reported:
Table 10- 8 Error message
Error code
Meaning
80E0
H
Error in header information
80E1
H
Parameter error