Mitsubishi Q Series User Manual page 52

3 SPECIFICATIONS
Alert set value
Temperature set value (SV)
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(b) Alert delay count setting
The system is set in the alert status when the process value (PV) that has
reached the alert set value remains in the alert range until the sampling
count becomes equal to or greater than the preset number of alert delays.
The setting of alert delay count is made by the alert delay count (buffer
memory address: 165).
Example: When the number of alert delays set to the input upper limit alert
is 5, the system is not placed in the alert status if the sampling
count is 4 or less.
Measured value (PV)
Input sampling
Alert status
Measured value (PV)
3 times 5 times
Non-alert status
MELSEC-Q
Time
Alert status
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