Omron CRT1 - 10-2008 Operation Manual page 315

Status Areas
Alarm Status Area
CRT1-DA02 Analog
Output Units
Warning Status Area
292
The Analog Input Slave Unit's Alarm Status Area contains the following 16
bits. These bits indicate serious errors in the Unit.
Bit Content
0 Reserved
1 EEPROM Data Error Flag
OFF: Normal
ON: Error
2 Reserved
3 Reserved
4 Reserved
5 Reserved
6 Reserved
7 Reserved
8 Disconnected Line Detection Flag
OFF: Normal
ON: Disconnected line detected
9 Analog Hardware Error Flag
OFF: Normal
ON: Error
10 Reserved
11 Reserved
12 Reserved
13 Reserved
14 Reserved
15 Reserved
The Analog Output Slave Unit's Warning Status Area contains the following
16 bits. These bits indicate minor errors in the Unit.
Bit Content
0 Reserved
1 Reserved
2 Network Power Voltage Drop Flag
OFF: Normal
ON: Error (Voltage dropped below
threshold.)
3 Unit Maintenance Flag
OFF: Normal
ON: Error (Threshold exceeded.)
4 Reserved
5 Reserved
6 Reserved
7 Reserved
8 Error Output Flag
OFF: Normal
ON: Output is incorrect
Section 6-2
Description
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Turns ON when there is an error in
the EEPROM data.
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Turns ON when the line is discon-
nected, including wiring mistakes and
connected device failure.
Turns ON when there is an error in
the analog circuits in the Unit.
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Description
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Turns ON when the voltage goes
below the value set for the network
power voltage monitor function.
Turns ON when the conduction time
exceeds the value set for the Unit
Conduction Time Monitor function.
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Turns ON when the value set for the
communications error output func-
tion is being output.