Omron CRT1 - 10-2009, Operation Manual

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Status Areas
Section 10-1
10-1 Status Areas
An Repeater Unit has two status areas: the Warning Status Area and the
Alarm Status Area. The status flags in these areas are turned ON and OFF
based on the threshold/monitor values set for each function in that Unit. When
any of the bits in the status area of the slaves connected to the Master Unit
turns ON, the corresponding bit (bit 12 is for warning status area notices and
bit 13 is for alarm area notices) of the status flag in the Master Unit turns ON.
The Repeater Unit's status area information can be read by using the CX-Inte-
grator or explicit messages.
Warning Status Area
The Repeater Unit’s Warning Status Area contains the following 16 bits.
These bits indicate minor errors in the Unit.
Master Unit
The Repeater Unit has two status areas:
the Warning Status Area and the Alarm Status Area.
Transmitted
to Master Unit
Repeater Unit
The status bit detection allocated to the master is OR of all
slaves
Bit Content Description
0 Reserved ---
1 Reserved ---
2 Network Power Voltage Drop Flag
OFF: Normal
ON: Error (Voltage dropped below
threshold.)
Turns ON when the voltages drops
below the voltage set for the network
power voltage monitor function.
3 Unit Maintenance Flag
OFF: Normal
ON: Error (Threshold exceeded.)
Turns ON when the threshold set for
the Unit Conduction Time Monitor
function is exceeded.
4 Reserved ---
5 Reserved ---
6 Reserved ---
7 Reserved ---
8 Reserved ---
9 Reserved ---
10 Downstream Network Voltage Flag
OFF: Normal
ON: Error (Power OFF.)
Turns ON when the power supply to
the downstream network is OFF.
11 Reserved ---
12 Reserved ---
13 Reserved ---
14 Reserved ---
15 Reserved ---