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5.3.1. Tolerance Range (ZSW Bit 8)
If the setpoint is changed:
1. ZSW Bit 8 is set 0
2. Calculate the tolerance.
3. Start the timer which will time-out based on parameter Tmax.
This product checks that the timer (Tmax) has not timed-out and if the actual value is within the tolerance.
If both conditions are fulfilled ZSW Bit 8 is set 1 and the timer is stopped.
The figure shows ZSW 8 when Tolerance (
c157
) is 50% and Tmax (
c151
) is 3s.
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