Hitachi HIDIC EH-150 Applications Manual page 52
Devicenet master module(eh-rmd)/ slave controller(eh-iocd)/ discrete i/o slave unit (rdx16d,rdy16tp,rdy16r)
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Also See for HIDIC EH-150:
- Applications manual (114 pages) ,
- Instruction manual (29 pages) ,
- Applications manual (97 pages)
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(2) STATUS
Display status
Description
Lit in green
Normal operation
Internal microcomputer WDT
Lit in red
error
I/O module error
Flashing once in
The slot number is indicated by
red
the number of flashes in green.
Flashing twice in
I/O module not supported
red
Flashing three
Incorrect number of I/O points
times in red
Flashing four times
Module internal device error
or more in red
Turned off
No power supply to the PLC.
Table 6.9 STATUS LED Specification
Action to take
Turn the power supply off and then on again.
If the error persists, replace the module.
Replace the faulty module.
Remove the module that is not supported.
Set the input/output data so that it is 256
words or less.
Turn the power supply off and then on again.
If the error persists, replace the module.
Check that the specified voltage is supplied to
the power module of the PLC.
6-5
Chapter 6 Slave Controller Specifications
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