Parameter Data Records; Parameter Assignment And Structure Of The Parameter Data Records - Siemens S7-1500 Manual
Digital input module
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Also See for S7-1500:
- System manual (523 pages) ,
- Function manual (402 pages) ,
- Manual (188 pages)
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Parameter data records
B.1
Parameter assignment and structure of the parameter data records
The data records of the module have an identical structure, regardless of whether you
configure the module with PROFIBUS DP or PROFINET IO.
Dependencies for configuration with GSD file
When a GSD file is used to configure a module, dependencies can arise when "assigning the
parameters".
There are no dependencies for this module. You can assign the individual parameters in any
combination.
Parameter assignment in the user program
You have the option to reconfigure the module in RUN (e.g. the input delay values of
selected channels can be edited without having an effect on the other channels).
Parameter assignment in RUN
The "WRREC" instruction is used to transfer the parameters to the module using data
records 0 to 15. The parameters set in STEP 7 do not change in the CPU, which means the
parameters set in STEP 7 are still valid after a restart.
The parameters are only checked for plausibility by the module after the transfer.
Output parameter STATUS
The module ignores errors that occurred during the transfer of parameters with the WRREC
instruction and continues operation with the previous parameter assignment. However, a
corresponding error code is written to the STATUS output parameter.
The description of the WRREC instruction and the error codes is available in the STEP 7
online help.
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 are not 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 device manual for the PROFIBUS DP interface module in the
Internet.
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Digital input module DI 16x24...125VUC HF (6ES7521-7EH00-0AB0)
B
Manual, 12/2016, A5E35681478-AC
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