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Table 3. LED Indicators
LED
LED Color
LED Pattern
Indication
D
Green
Solid
The REM-11178 is ready for operation.
Flashing
Data is invalid or unavailable.
Green/Yellow Flashing
The REM-11178 cannot communicate with the
connected devices.
D
Yellow
Solid
The REM-11178 did not detect a valid cycle after
power-on.
Flashing
The REM-11178 is not part of the configuration.
Red
Solid
The REM-11178 has lost connection to the Bus
Coupler.
Flashing
The REM-11178 has lost connection to the preceding
adjacent module.
—
Off
The REM-11178 is in reset mode.
UO
Green
Solid
Supply to digital output module present.
—
Off
No supply to digital output modules.
E1
Red
Solid
Breakdown or overload/short-circuit of an output.
—
Off
No I/O error.
00...37
Red
Solid
Short-circuit/overload of the output.
Yellow
Solid
Output is set.
—
Off
Output is not set.
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REM-11178 Getting Started Guide