Omron CQM1H-SCB41 Operation Manual page 143

Troubleshooting
Serial Indicator
communi- display
cations
mode
Serial com- The
munica- COMM@
tions mode indicators
is set to do not flash
protocol at all.
macro. (Communi-
cations
have not
been elec-
trically
estab-
lished.)
128
Status I/O memory
information,
etc.
The PMCR( ) The error code in
instruction is IR 20408 to
executed, but IR IR 20411 or
20708 or IR IR 20412 to
20712 (Protocol IR 20415 is 4 Hex
Macro Execut- (Protocol Data Syn-
ing Flag) does tax Error).
not turn ON.
The PMCR ( ) IR 20711 or
instruction is not IR 20715 (Forced
executed. Abort Bit) is ON.
System error
FAL 9C does not
occur.
IR 20708 or Send processing is
IR 20712 (Pro- not executed.
tocol Macro
Executing Flag)
turns ON when
the PMCR( )
instruction is
executed, but
data cannot be
sent or received
properly.
IR 20708 or IR 20711 or
IR 20712 (Pro- IR 20715 (Forced
tocol Macro Abort Bit) is ON.
Executing Flag)
momentarily
turns ON when
the PMCR( )
instruction is
executed, but it
does not remain
ON.
IR 20708 or The sequence is run-
IR 20712 (Pro- ning and does not
tocol Macro end (the words allo-
Executing Flag) cated in the CIO
remains ON Area is in receive
when the status).
PMCR( )
instruction is
executed with-
out setting the
monitoring time
for individual
sequences
Cause
The protocol data in the
Serial Communications
Board is incorrect.
---
The send wait time speci-
fied in communications
sequence step units is
too long.
Forced Abort Bit is force-
set.
Protocol macro data is
not set correctly.
The PC Setup settings
such as the baud rate
and frame format differ
from those of the remote
node.
Section 9-2
Remedy
Use CX-Protocol to cor-
rect and transfer the pro-
tocol data.
Release the Forced Abort
Bit
Use CX-Protocol to check
whether the send wait
time is correctly set.
Release the Forced Abort
Bit
Use CX-Protocol trans-
mission line trace to
check whether the proto-
col data and PC Setup
settings are correct.