Limitalarm - Omron NY532-5400 Reference Manual

LimitAlarm_**

The LimitAlarm_** instruction outputs an alarm if the input value is below the lower limit set value or
above the upper limit set value.
Instruction Name
Upper/Lower
LimitAlarm_** Limit Alarm
Group
Variables
Name Meaning
Enable Enable
Upper limit set
H
value
X Input value
Lower limit set
L
value
EPS Hysteresis
Q Alarm output
Upper limit
QH
alarm
Lower limit
QL
alarm
* Negative numbers are excluded.
NY-series Instructions Reference Manual (W560)
FB/
Graphic expression
FUN
LimitAlarm_**_Instance
LimitAlarm_**
Enable
FB
H
X
L
EPS
"**" must be REAL or LREAL.
I/O Description
TRUE: Execute
FALSE: Reset alarm
Upper limit set value for the
input value
Input
Value to monitor
Lower limit set value for the
input value
Hysteresis of the alarm
TRUE: There is either an upper
limit alarm or a lower limit alarm.
FALSE: There is neither an
upper limit alarm nor a lower
limit alarm.
TRUE: There is an upper limit
alarm.
Output
FALSE: There is no upper limit
alarm.
TRUE: There is a lower limit
alarm.
FALSE: There is no lower limit
alarm.
2 Instruction Descriptions
ST expression
LimitAlarm_**_instance(
Enable,
H,
X,
L,
EPS,
Q
Q,
QH
QH,
QL
QL,
Error
Error);
"**" must be REAL or LREAL.
Valid range
Depends on
data type.
---
Depends on
data type.*
Depends on
---
data type.
2
Unit Default
FALSE
0
---
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