82
Self-Diagnosis Section 7-1
Item Program-
C200H Master LEDs
C200H Slave LEDs
Cause Correction
ming Con
-
sole Display
XMT/
RCV
Error END
RS
LINE
ERR
XMT/
RCV
Error
1
Error
2
RUN
Remote
I/O
System
operation
failure
Slave not
confirmed
flash not
lit
not
lit
not
lit
not lit
not
lit
not
lit
not
lit
Slave not verified.
Check Slave Units and
turn power back ON.
Then, turn CPU Unit pow
-
er supply back ON or re-
start Master
.
Expansion
I/O Rack not
confirmed
flash lit flash ---
Expansion I/O
Unit connected
via I/O connecting
cable not
recognized by
CPU Unit.
Check I/O Connecting
Cable connections. Check
Expansion I/O Rack
words and the system
configuration. If an I/O
table is being used,
reference it on the
Programming Console,
and restore the system
configuration or recreate
the I/O table.
Remote
I/O error
(after
starting
system)
Remote I/O
System
operation
failure
flash/
lit
lit not
lit
not
lit
not lit
not
lit
not
lit
not
lit
I/O bus line break
or CPU Unit error
.
Check optical fiber cable.
If the cause is removed,
recovery will be automatic.
Otherwise replace unit.
Transmis-
sion error
not lit
lit not
lit
not
lit
I/O bus
transmission line
break or error
.
I/O bus error
flash lit lit not
lit
Slave I/O bus er
-
ror.
Check all Slaves and
Slave Racks. Replace
faulty units.
I/O
verification
error
flash flash lit ---
I/O Unit on Slave
Rack removed or
added.
Reference the I/O table on
the Programming Con
-
sole, and reset I/O or rec
-
reate the I/O table.
I/O setting
error
flash lit lit not
lit
Input and Output
Units reversed on
Slave Rack.
Reference the I/O on the
Programming Console,
and restore the I/O Unit
word allocations
Transmis-
sion error
lit
not lit
lit not
lit
not
lit
T
ransmission line
shorted.
Check transmission
cables.
I/O verification errors and I/O setting errors occur when an I/O table is used
or when the power supply to a Slave is turned off and I/O Unit settings are
changed during CPU Unit operation.
Note
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