Omron CJ1W-CORT21 Operation Manual page 61

Indicator
RUN
ERR
 Seven-Segment Indicator
In addition to the RUN and ERR indicators, User Defined CAN Units have a 2-digit, 7-segment dis-
play that normally indicates the enabled or disabled status of the communication. When an error
occurs, the seven-segment indicators will display a (flashing) error code.
There are dot indicators in the lower-right corner of each digit. The left dot of these two indicators
shows whether or not the Unit is configured with message commands (ST4 or ST5). The right dot
indicator shows whether the communication is enabled or disabled. the dot is lit when the communi-
cation is enabled (ST5).
CJ-series User Defined CAN Unit Operation Manual for NJ-series CPU Unit (W517)
Color Status
Green ON
Red ON
--- OFF
Red ON
--- OFF
Normal 00, indicating enabled.
Error: FF communication disabled, blink 01 network power fail,
blink 02 bus off.
Indicates whether the communication is enabled (lit) or disabled.
Indicates whether the unit is configured, ST4 or ST5.
2 Nomenclature and Installation
Condition
Normal operating status. The Unit state is
ST3, ST4 or ST5.
• A non-recoverable fatal error has occurred
• Unit state is ST2 and a start-up error has
occurred.
Power is not supplied or the Unit is in state
ST1 or ST2.
A fatal communication error has occurred.
Network communications are not possible.
One or more of the following errors active:
• Hardware error at startup (Unit in ST2).
• No CAN configuration.
• CAN network power fail (*_NetPwrErr)
• Unit is Bus off (*_BusoffErr)
• Fatal error in Unit
• CPU Watchdog Time-out
• CPU communication bus error
• Cyclic refresh time-out.
• I/O table error
The Unit has no active error, diagnostic func-
tions do not detect any error condition.
2
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