Omron C200H-RM201 - Page 90

81
Self-Diagnosis Section 7-1
C200H Remote I/O Systems
Item Program-
ming
C200H Master LEDs C200H Slave LEDs Cause Correction
m
i
ng
Console
Display
XMT/
RCV
Error END
RS
LINE
ERR
XMT/
RCV
Error
1
Error
2
RUN
Prior to
system
operation
Master
not
detected
not lit not lit not lit not lit
--- --- --- ---
CPU Unit doesn’t
detect the Master .
Master not mount
properly or CPU
Unit error .
Check mounting of Master;
turn power back ON. If error
cannot be cleared replace
Master.
CPU
Waiting
or
Remote
I/O errors
not lit not lit lit not lit
--- --- --- ---
Slave power OFF
or I/O bus line
broken. T ermina-
tor not set.
T urn on power to the Slaves
and connected Units. Check
transmission cables. Set the
Unit farthest removed from
Master as the terminator .
not lit lit lit not lit
---
lit lit not lit Slave I/O bus
error.
Replace faulty unit.
not lit
--- --- ---
not lit Transmission
error in I/O bus.
Check transmission cables.
lit
--- --- ---
not lit T ransmission line
shorted
Check transmission cables.
not lit flash
--- ---
not lit System
configuration
incorrect.
Check unit numbers of I/O
Units. Confirm that the
same word number or unit
number is not allocated
twice. Check to see if the
maximum number of words
is not exceeded.
not lit not lit flash not lit
--- --- ---
not lit T wo or more
terminators have
been designated.
Refer to 7-7
Slave Unit
Numbers with
Multiple
Terminators
.
Make sure only 1 Unit has
been set as the terminator .
T oo many
I/O points
not lit lit not lit not lit not lit
--- ---
not lit Same word
multiplier used for
more than one
Master.
Check word multipliers and
correct any that are
redundant
flash not lit not lit lit flash
--- ---
not lit Same unit
number assigned
more than once.
Check AR 02 through AR
06 for the redundant unit
numbers and correct them.
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