Siemens SIMATIC ET 200SP Manuel - Page 38

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Parameter data record

A.1

The data record of the module has an identical structure, regardless of whether you

configure the module with PROFIBUS DP or PROFINET IO. With data record 128, you can

reconfigure the module in your user program regardless of your programming. This means

that you can use all the functions of the module even if you configured it via PROFIBUS-

GSD.

With data records 0 to 7, you can reconfigure individual channels.

Operation of the module behind a PROFIBUS DP interface module

If the module is operated behind a PROFIBUS DP interface module, the parameter data

records 0 and 1 cannot be read back. You obtain the diagnostics data records 0 and 1 with

the read back parameter data records 0 and 1. You can find additional information in the

Interrupts section of the PROFIBUS DP interface module manual on the Internet

(http://support.automation.siemens.com/WW/view/en/78324181).

Parameter assignment in the user program

The module parameters can be re-assigned in RUN (for example, the input delay of selected

channels can be edited in RUN without having an effect on the other channels).

Changing parameters in RUN

The WRREC instruction is used to transfer the parameters to the module using data record

128 or data records 0 to 7. The parameters set in STEP 7 are not changed in the CPU,

which means that the parameters set in STEP 7 will be valid again after a restart.

If you reconfigure a module and diagnostics are pending prior to the reconfiguration, these

diagnostics are not signaled as "outgoing".

Output parameter STATUS

The module ignores errors that occur during the transfer of parameters with the "WRREC"

instruction and continues operation with the previous parameter assignment. The STATUS

output parameter contains a corresponding error code.

You will find a description of the "WRREC" instruction and the error codes in the STEP 7

online help.

Digital input module DI 8x24VDC HF (6ES7131-6BF00-0CA0)

Manual, 12/2017, A5E03576305-AE