Omron ERT1 Series Operation Manual page 83

Environment-resistive Slave Units
Indicators
Communications
Indicators
Input Indicators
Pin
1 V+ (24 V: for internal circuits and inputs)
2 NC
3 V− (0 V: for internal circuits and inputs)
4 NC
(4) Communications Indicators: MS and NS
These indicators show the Unit communications status and network commu-
nications status.
(5) Input Connectors
The input devices are connected to these connectors.
(6) Input Indicators
These indicators show the ON/OFF status of the inputs and the error status of
connected devices.
Refer to 3-1-3 Communications Indicators.
These indicators show the ON/OFF status of the inputs and the error status of
connected devices.
Indicator Color
1-A Lit yellow.
Not lit.
Lit red.
Flashing red.
1-B Lit yellow.
Not lit.
Lit red.
Flashing red.
2-A Lit yellow.
Not lit.
Lit red.
Flashing red.
2-B Lit yellow.
Not lit.
Lit red.
Flashing red.
Signal
Status Meaning (main error)
Input 0 is ON.
Input 0 is OFF.
Connector 1 is short-circuited.
Connector 1 is disconnected.
Input 1 is ON.
Input 1 is OFF.
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Input 2 is ON.
Input 2 is OFF.
Connector 2 is short-circuited.
Connector 2 is disconnected.
Input 3 is ON.
Input 3 is OFF.
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Section 5-2
63