Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 345

Troubleshooting
Serial commu- Indicator
nications status
mode
Host Link (with The SD@/RD@
unsolicited and COM@
communica- indicators are
tions) all flashing.
316
Status CIO Area
information,
etc.
SEND(090)/ The AER Flag (one
RECV(098)/ of the condition
CMND(490) flags) is ON.
instructions
have been
executed but
have not
been sent.
Bit 00 to 07 of word
A219 (Communica-
tions Port Error
Flag) are set to 1
(ON).
The ER Flag (one of
the condition flags)
is ON.
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.
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.
Cause
The contents of the Check the contents of the
S, C, and D oper- S, C, and D operands of
ands for the the SEND(090),
SEND(090), RECV(098), and
RECV(098), and CMND(490) instructions,
CMND(490) instruc- and correct if necessary.
tions is set in a
read-protected
area.
The contents of the Check the contents of the
S, C, and D oper- S, C, and D operands of
ands for the the SEND(090),
SEND(090), RECV(098), and
RECV(098), and CMND(490) instructions,
CMND(490) instruc- and correct if necessary.
tions is set incor-
rectly.
The communica- Either use a different com-
tions port number to munications port number
be used is executing than the one being used to
a SEND(090)/ execute the SEND(090)/
RECV(098)/ RECV(098)/ CMND(490)
CMND(490) instruc- instruction or PMCR(260)
tion or PMCR(260) instruction, or wait for the
instruction. same communications
port number to be enabled
and execute the instruc-
tion.
Program is incor- Set the Communications
rect. Port Enabled Flag as an
NC execution condition for
SEND(090), RECV(098),
and CMND(490) instruc-
tions.
The Board or Unit is Perform one of the follow-
set for CTS control, ing error processing meth-
but the RTS signal ods.
from the host is not
Loopback the RTS and
input into the CTS
CTS signals on the local
signal of the local
Unit.
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.
Section 11-3
Remedy