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316
Troubleshooting
Section 11-3
Host Link (with
unsolicited
communica-
tions)
The SD
@
/RD
@
and COM
@
indicators are
all flashing.
SEND(090)/
RECV(098)/
CMND(490)
instructions
have been
executed but
have not
been sent.
The AER Flag (one
of the condition
flags) is ON.
The contents of the
S, C, and D oper-
ands for the
SEND(090),
RECV(098), and
CMND(490) instruc-
tions is set in a
read-protected
area.
Check the contents of the
S, C, and D operands of
the SEND(090),
RECV(098), and
CMND(490) instructions,
and correct if necessary.
Bit 00 to 07 of word
A219 (Communica-
tions Port Error
Flag) are set to 1
(ON).
The contents of the
S, C, and D oper-
ands for the
SEND(090),
RECV(098), and
CMND(490) instruc-
tions is set incor-
rectly.
Check the contents of the
S, C, and D operands of
the SEND(090),
RECV(098), and
CMND(490) instructions,
and correct if necessary.
The ER Flag (one of
the condition flags)
is ON.
The communica-
tions port number to
be used is executing
a SEND(090)/
RECV(098)/
CMND(490) instruc-
tion or PMCR(260)
instruction.
Either use a different com-
munications port number
than the one being used to
execute the SEND(090)/
RECV(098)/ CMND(490)
instruction or PMCR(260)
instruction, or wait for the
same communications
port number to be enabled
and execute the instruc-
tion.
The Communica-
tions Port Enabled
Flag (A20200 to
A20207)is OFF
(execution disabled)
The Communica-
tions Port Enabled
Flag (A20200 to
A20207) is set as an
NC the execution
condition for
SEND(090),
RECV(098), and
CMND(490) instruc-
tions.
Program is incor-
rect.
Set the Communications
Port Enabled Flag as an
NC execution condition for
SEND(090), RECV(098),
and CMND(490) instruc-
tions.
Bit 15 of DM Area
words m + 3/m + 13
(CTS control) is
turned ON, and bit
04 of CIO Area
words n + 7/n + 17
(CTS signal) is
turned OFF.
The Board or Unit is
set for CTS control,
but the RTS signal
from the host is not
input into the CTS
signal of the local
Unit.
Perform one of the follow-
ing error processing meth-
ods.
Loopback the RTS and
CTS signals on the local
Unit.
Set to no CTS control.
Input the RTS signal from
the remote Unit into the
CTS signal of the local
Unit for CTS control.
Serial commu-
nications
mode
Indicator
status
Status
information,
etc.
CIO Area
Cause
Remedy
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...