Siemens SIMATIC S7-1500/ET 200MP System Manual page 79

System overview
4.6 Input and output modules
Calibration in runtime
The following analog modules offer you the calibration function at runtime:
• AI 8xU/I/RTD/TC ST
• AI 8xU/I HS
• AI 4xU/I/RTD/TC ST
• AI 4xU/I/RTD/TC / AQ 2xU/I ST
The calibration compensates for influences on the measuring result by cables and/or
temperature. A calibration checks the process values output by the analog input module,
determines the deviation from the actual values and compensates for measuring errors.
Typical use:
• For plants in which sensors detect relatively small voltages or currents
• For applications which require regular calibration for all components in a measuring
circuit.
Oversampling of the AI 8xU/I HS analog input module
Oversampling divides a PROFINET bus cycle into equidistant bus sub-cycles. This requires
isochronous mode.
Oversampling acquires data with high time resolution but without using an extremely short
PROFINET bus cycle and thus fast CPU cycles. Use for quality-monitoring measurements, for
example when recording pressure trends during the blowing process of PET bottle
production.
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Automation system
System Manual, 01/2023, A5E03461182-AK