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322
Troubleshooting
Section 11-3
The con-
verted
command
could be
sent to the
remote
device but
a normal
response is
not
received
from the
remote
device.
The serial
communica-
tions mode is
set to Serial
Gateway or
protocol
macro mode.
Either the
SD
@
/RD
@
and COM
@
indicators all
flash.
0205 hex
(response
timeout), etc.
Bit 05 of CIO
word n+8/
n+18 (Serial
Gateway Send
Start Time-
out/ Response
Timeout) is
ON.
The response
from the remote
device is too fast
and the data
received by the
Board/Unit has
been discarded.
Delay the response from
the remote device.
The SD
@
and COM
@
indicators
flash, but a
response is
not always
returned.
0205 hex
(response
timeout), etc.
Bit 02, 03, 04,
or 15 of CIO
word n+8/
n+18 (transfer
error, overrun
error, framing
error, or parity
error) is ON.
A hardware error
has occurred in
the reception cir-
cuit of the Board/
Unit.
Conduct a loopback test
in serial communications
mode to check the trans-
mission lines. If an error
occurs during the test,
replace the Board or
Unit.
The RD
@/
SD
@
, and
COM
@
indi-
cators all
flash, but a
response is
not always
returned.
A transmission
error has occurred
due to noise.
Use shielded twisted-
pair cables.
Lay power lines sepa-
rately using ducts.
Increase the number of
resends at the FINS
transmission source.
Perform communications
retry as required.
Error conditions
Cause
Remedy
Board/Unit
status
Serial com-
munications
mode
Indicator
display
FINS end
code sent to
FINS trans-
mission
source
Words allo-
cated in CIO
Area
Summary of Contents for SYSMAC CJ1W-SCU21-V1
Page 3: ...iv...
Page 5: ...vi...
Page 9: ...x...
Page 15: ...xvi...
Page 89: ...60 Basic Operating Procedure Section 1 9...
Page 151: ...122 RS 232C and RS 422A 485 Wiring Section 3 4...
Page 173: ...144 Host Link Function for Replacing Existing PLCs Section 4 6...
Page 223: ...194 Enhanced Protocol Macro Functions Section 5 6...
Page 277: ...248 Communications Frames Section 6 8...
Page 291: ...262 Basic Operating Procedure in No protocol Mode Section 7 4...
Page 301: ...272 Auxiliary Area and CIO Area Allocations Section 8 3...
Page 391: ...362 Introduction Appendix A...
Page 421: ...392 CompoWay F Master Protocol Appendix B...
Page 513: ...484 E5 K Digital Controller Read Protocol Appendix F...
Page 571: ...542 E5ZE Temperature Controller Write Protocol Appendix I...
Page 587: ...558 E5 J Temperature Controller Protocol Appendix J...
Page 627: ...598 ES100 Digital Controller Protocol Appendix K...
Page 661: ...632 V500 V520 Bar Code Reader Protocol Appendix M...
Page 697: ...668 3Z4L Laser Micrometer Protocol Appendix N...
Page 717: ...688 Visual Inspection System Protocol Appendix O...
Page 755: ...726 V600 V620 ID Controller Protocol Appendix P...
Page 763: ...734 Hayes Modem AT Command Protocol Appendix Q...
Page 767: ...738 Changing Communications Port Settings Using STUP 237 Appendix R...
Page 781: ...752 Revision History...