Siemens Simatic ET 200MP Manual page 20

Parameters/address space
4.1 Parameter
Comparison value
With this parameter you specify the count value at which the digital output DQ (STS_DQ bit
of the feedback interface) switches due to the selected comparison event.
Start value
With this parameter, you specify the value at which counting begins and is continued if
defined events occur. The following condition must be met:
Low counting limit < = start value < = high counting limit.
Behavior when a counting limit is exceeded
With this parameter, you specify the behavior if a counting limit is exceeded.
Behavior
Stop counting
Continue counting
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Meaning
After a counting limit is exceeded, the counting procedure is
aborted and the STS_GATE bit (internal gate) is reset.
To restart the counting, the SW_GATE bit must be reset via
the control interface and set again.
After a counting limit is exceeded, the counted value is set
to the other counting limit and counting is continued.
DI 32x24VDC HF digital input module (6ES7521-1BL00-0AB0)
Manual, 09/2016, A5E03485935-AF