Omron SYSMAC CJ1W-AD04U, Руководство по эксплуатации

Страница: 35 / 76

16
Nomenclature and Functions Section 2-3
Indicators
The indicators show the operating status of the Unit. The following table
shows the meanings of the indicators.
Unit Number Switch
The CPU Unit and Universal Input Unit exchange data via the Special I/O Unit
Area and the Special I/O Unit words in the DM Area.
The Special I/O Unit Area word addresses and Special I/O Unit word
addresses in the DM Area that each Universal Input Unit occupies are set by
the unit number switch on the front panel of the Unit. Refer to page 26 for
details on the unit number setting.
Note If two or more Special I/O Units are assigned the same unit number, a “UNIT
No. DPL ERR” error (in the Programming Console) will be generated
(A401.13 will turn ON) and the PLC will not operate.
The fatal error code, error contents, and time of occurrence are stored as an
error record in the Auxiliary Area of the CPU Unit.
LED Meaning Indicator Operating status
RUN (green) Operating Lit Operating normally.
Not lit Unit has stopped exchanging data with the CPU Unit.
ERC (red) Error detected by
Unit Lit An alarm occurred (such as detection of a sensor error) or
there is an incorrect setting in the DM Area settings.
Not lit Operating normally.
ERH (red) Error in the CPU
Unit Lit Error has occurred during data exchange with the CPU Unit.
Not lit Operating normally.
MACH
No.
×
10
0
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
×
10
1
Unit number
setting switches