50
IM9000F02-E2
6. TROUBLESHOOTING
The causes of and measures to be used for faulty controller status during communication are
described in the following. For trouble other than the below, contact us or your nearest RKC agent
after confirming Model No. and specifications.
RKC standard communication
Details
Cause
Measures
Trouble with and imperfect contact of
communication cable and connector
Check communication cables and connectors.
Device address designation differs
Make reassignment after checking the device
address by referring to
"
3.4 Device address setting
" (P.9).
Incorrect communication speed
Set the communication speed suitable for the
host computer by referring to
"
3.5 Communication speed setting
"
(P.11).
Incorrect data configuration setting
Make reassignment after checking the data
configuration by referring to
"
3.6 Data configuration setting"
(P.13).
No response
Transmission line is not set to the receive
state after data send
Check a program on the host computer side.
Incorrect identifier
Make re-setting after checking the identifier
by
EOT return
The identifier of a function not added to
the REX-F9000 is specified
referring to
"
Communication identifier list
" (P.31).
BCC error
Check BCC of the transmission data.
Data exceeds the setting range
Check a data range.
NAK return
The identifier of a function not added to
the REX-F9000 is specified
Make re-setting after checking the identifier
by
referring to
"
Communication identifier list
" (P.31).
