Ny-Series Instructions Reference Manual (W560 - Omron NY532-5400 Reference Manual

Enable OK
X
H
Y
L
EPS
Q OK
QH OK
QL OK
StbySeq
OK
Flag
Function
The LimitAlarmDvStbySeq_** instruction monitors the deviation in the input value from the reference
value to see if it exceeds the lower deviation set value or the upper deviation set value. If the deviation
exceeds the lower deviation set value or the upper deviation set value, the instruction outputs an alarm.
However, the instruction will not output an alarm until the reference value first goes to between the
lower and upper deviation set values. Use this instruction in temperature control, e.g., to not output a
deviation alarm until the process temperature is stable.
The deviation in input value X from the reference value Y is monitored while Enable is TRUE. However,
the deviation is not monitored while Standby Sequence Enabled Flag StbySeqFlag is TRUE. If the
upper deviation in X from Y exceeds the value of upper deviation set value H, upper deviation alarm QH
changes to TRUE. If the lower deviation in X from Y exceeds the value of lower deviation set value L,
lower deviation alarm QL changes to TRUE. If the value of either QH or QL is TRUE, the value of alarm
output Q is TRUE. The values of X, H, Y, L, and EPS are continuously updated while Enable is TRUE.
If Enable changes to FALSE, the alarm is reset. When the alarm is reset, Q, QH, QL, and StbySeqFlag
change to FALSE.

NY-series Instructions Reference Manual (W560)

Bit strings
Must be same data type as X.
Must be same data type as X.
Must be same data type as X.
Must be same data type as X.
Integers
OK
2 Instruction Descriptions
Times, durations,
dates, and text
strings
OK
2
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