Omron CRT1 - 10-2009, Operation Manual

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377
Status Areas
Section 7-3
Warning Status Area
The Temperature Input Unit's Warning Status Area contains the following 16
bits. These bits indicate minor errors in the Unit.
Master Unit
The status bit detection allocated to the master is OR
of all slaves
Transmitted to Master Unit
Temperature Input Unit
The Status Area in the Temperature Input
Unit has a Warning Status Area and an
Alarm Status Area.
Bit Content Description
0 Reserved. Cannot be used.
1 Reserved. Cannot be used.
2 Network Power Voltage Drop Flag
OFF: Normal
ON: Error (Voltage dropped below
threshold.)
Turns ON when the Network Power
Voltage drops below the voltage set as
the threshold for monitoring.
3 Unit Maintenance Flag
OFF: Normal
ON: Error (Threshold exceeded.)
Turns ON when the Total Unit Conduc-
tion Time exceeds the value set as the
threshold for monitoring.
4 Reserved. Cannot be used.
5 Reserved. Cannot be used.
6 Reserved. Cannot be used.
7 Reserved. Cannot be used.
8 Temperature Input Warning Flag
OFF: Within range (below set moni-
tor value)
ON: Out-of-range (equal to or above
set monitor value)
Turns ON when the temperature data
exceeds the displayable range or the
monitor value set for the comparator
function.
9 Cumulative Counter Exceeded Flag
OFF: Within range (below set moni-
tor value)
ON: Out-of-range (equal to or above
set monitor value)
Turns ON when the cumulative value
exceeds the set monitor value.
10 Input Temperature Variation Detec-
tion Threshold Exceeded Flag
OFF: Within range (below set moni-
tor value)
ON: Out-of-range (equal to or above
set monitor value)
Turns ON when the difference between
input temperatures exceed the set mon-
itor value.
11 Set Temperature Range Total Time
Exceeded Flag
OFF: Within range (below set moni-
tor value)
ON: Out-of-range (equal to or above
set monitor value)
Turns ON when time in the set tempera-
ture range exceeds the set monitor
value.