Parameter Data Records; Parameter Assignment And Structure Of The Parameter Data Records - Siemens SIMATIC ET 200MP Manual

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 configuring the module with a GSD file, remember that the settings of some
parameters are dependent on each other. The parameters are only checked for plausibility
by the module after the transfer to the module.
The following table lists the parameters that depend on one another.
Table B- 1 Dependencies of parameters for configuration with GSD file
Device-specific parameters (GSD file)
Wire break
Common mode error
Measurement type resistance (3-wire-
connection)
Hardware interrupt limits
Temperature unit Kelvin (K)
Parameter assignment in the user program
The module parameters can be assigned in RUN (for example, measuring ranges of
selected channels can be edited in RUN 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 7. 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 to the
module.
Analog Input Module AI 8xU/I/R/RTD BA (6ES7531-7QF00-0AB0)
Manual, 03/2019, A5E44792324-AA
Dependent parameters
Only for measurement type resistance 3-wire connection, thermal resis-
tor RTD, voltage with measuring range 1 to 5 V and current with meas-
uring range 4 to 20 mA.
Only with measurement type voltage and current
Only with measuring range 600 Ω and 6000 Ω.
Only if hardware interrupts are enabled.
Only with measurement type thermal resistor (RTD) standard.
B
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