Omron CQM1H series - Page 77

Appendix BTroubleshooting
57
Errors Master Expansion
Master
RDY T/R
RDY
T/R END NODE ALM RDY T/R
I/O word setting error
I/O unit overflow
Defective CQM1H/CQM1 unit connection
No end cover CQM1H/CQM1 initial check NG
X* –– –– –– –– –– X ––
Master unit error –– X X X X X –– ––
Slave set between #28 and #30.
f
X**
Y f** f**(X)
––
f f**
Incorrect transmission path setting.
f
X**
Y f**
X ––
f f**
Terminator not turned on.
f
X**
Y f**
X ––
f f**
Duplicate terminator setting.
f
X**
Y Y**
X ––
f f**
Duplicate Expansion Master Unit #.
Slave address setting error
f
f
X**
f
Y
Y
f**
X
X**
Y
––
f
f
f**
Y
Transmission path shorted/discontinuity
f
X**
f**
X –– ––
f f**(Y)
Slave power off/CPU out of control
f
X**
f**
X –– ––
f
X**
Output error from Slave with error detection function.
f f Y
X X
f** f Y
Note Indicators shown with “**” differ from normal status.