Siemens Simatic S7-1500 Manuel - Page 35

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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.

The following figures describe the structure of data record 128 as of firmware version V1.0.

Configuration in the user program

You can configure the modules in runtime.

Changing parameters in RUN

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

record 128. The parameters set with STEP 7 are not changed in the CPU by this action. This

means the parameters set in STEP 7 are still valid after a restart.

Output parameter STATUS

If errors occur when transmitting parameters with the "WRREC" instruction, the module

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.

Error message

The module always checks all the values of the transferred data record. Only if all the values

were transferred without errors does the module apply the values from the data record.

The instruction WRREC for writing data records returns corresponding error codes when

errors occur in the parameter STATUS.

The following table shows the module-specific error codes and their meaning for the

parameter data record 128:

Table A-1 Error message

Error code

80B1

80E0

80E1

Communication module IO-Link Master CM 8xIO-Link (6ES7547-1JF00-0AB0)

Equipment Manual, 08/2022, A5E45488510-AB

Meaning

Error in data length

Error in header information

Parameter error