Mitsubishi Electric MELSEC FX2N-2LC, Руководство пользователя

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FX2N-2LC Temperature Control Block Buffer Memory (BFM) 7
7-24
Input range : Numeric value from the lower limit to the upper limit of input value
Input width : Width from the lower limit to the upper limit of input value (Input width = Upper
limit value - Lower limit value)
± Input width: Both a positive and negative numeric values can be set.
+ Input width: Only a positive numeric value can be set.
11
Upper/lower limit deviation
value alarm with wait
When absolute deviation (=

Measured value (PV)
- Set value (SV)

) is more than alarm set value, an
alarm is issued. However, when power is turned
on, measured value is ignored.
+Input
width
12
Upper limit deviation value
alarm with re-wait
When deviation (= Measured value (PV) - Set
value (SV)) is more than alarm set value, an alarm
is issued. However, when power is turned on and
when set value is changed, measured value is
ignored.
±Input
width
13
Lower limit deviation value
alarm with re-wait
When deviation (= Measured value (PV) - Set
value (SV)) is less than alarm set value, an alarm
is issued. However, when power is turned on and
when set value is changed, measured value is
ignored.
±Input
width
14
Upper/lower limit deviation
value alarm with re-wait
When absolute deviation (=

Measured value (PV)
- Set value (SV)

) is more than alarm set value, an
alarm is issued. However, when power is turned
on and when set value is changed, measured
value is ignored.
+Input
width
Table 7.8:
Alarm
No.
Alarm type Description
Set
range