Declaration Of Parameters - Siemens SIMATIC ET 200MP Manual

4.3

Declaration of parameters

Overflow
Enabling of the diagnostics if the measured value violates the high limit.
Underflow
Enabling of the diagnostics when the measured value violates the low limit.
Common mode error
Enabling of diagnostics if the valid common mode voltage is exceeded.
Wire break
Enabling of the diagnostics if the module has no current flow or the current is too weak for
the measurement at the corresponding configured input or the applied voltage is too low.
Temperature coefficient
The temperature coefficient depends on the chemical composition of the material. In Europe,
only one value is used per sensor type (default value).
The temperature coefficient (α value) indicates by how much the resistance of a specific
material changes relatively if the temperature increases by 1 °C.
The further values facilitate a sensor-specific setting of the temperature coefficient and
enhance accuracy.
Interference frequency suppression
At analog input modules, this suppresses interference caused by the frequency of the AC
network.
The frequency of the AC voltage network may interfere with measured values, particularly for
measurements within narrow voltage ranges. For this parameter, the user defines the mains
frequency prevailing on his system.
Smoothing
The individual measured values are smoothed using filtering. The smoothing can be set in 4
levels.
Smoothing time = number of module cycles (k) x cycle time of the module.
Analog Input Module AI 8xU/I/R/RTD BA (6ES7531-7QF00-0AB0)
Manual, 03/2019, A5E44792324-AA
Parameters/address space
4.3 Declaration of parameters
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