Omron CJ1W-SCU32 Operation Manual page 295

Error conditions
Serial Indicator
communica- display
tions mode
Serial com- The
munications SD@/RD@
mode is set to indicators do
protocol not flash at all.
macro. (Communica-
tions was not
electrically
established.)
The
SD@/RD@
indicators do
not flash at all.
(Communica-
tions was not
electrically
established.)
Note 1 The System Settings can not be changed unless the power supply is cycled, the Unit is restarted, or the
port is restarted. Refer to 1-8 Basic Operating Procedure for details.
2 For details on the protocol macros, refer to the CX-Protocol Ver.1.9 OPERATION MANUAL (Cat. No.
W344).
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
Status Confirmation of
information, etc. device variable for
CJ-series Unit, etc.
The ExecPMCR
Bits 00 to 03 (Protocol
instruction is exe- macro error code) of
cuted, but *_P1(orP2)_PmrSta
*_P1(orP2)_PmrE are set to 2 hex
xecSta (Protocol (Sequence No. error).
Macro Executing
Flag) is not set to
TRUE.
Bits 00 to 03 (Protocol
macro error code) of
*_P1(orP2)_PmrSta
are set to 4 hex (Proto-
col data syntax error).
As ExecPMCR instruc-
tion execution condi-
tions, the Network
Communications
Instruction Enabled
Flag
(_Port_isAvailable) is
used as N.C.
*_P1(orP2)_Operating
Sta (Port Operating
Status) remains
FALSE (Port stopped).
*_P1(orP2)_PmrE Send processing is not
xecSta (Protocol executed.
Macro Executing
Flag) is set to
TRUE when the
*_P1(orP2)_RmtBusyS
SendPMR
ta (Remote Unit Busy)
instruction is exe-
is set to TRUE
cuted, but data
(Remote Unit busy).
can not be prop-
erly sent or
received.
*_P1(orP2)_PmrSeqW
aitSta (Sequence Wait
Flag) is set to TRUE
(Sequence wait sta-
tus).
*_P1(orP2)_PmrE *_P1(orP2)_PmrAbtC
xecSta (Protoc- md (Abort Switch) is
col Macro Execut- force-set.
ing Flag) either is
changed to ON
momentarily
when the ExecP-
MCR instruction
is executed, or it
is not changed to
ON at all.
9 Troubleshooting and Maintenance
Cause
The sequence number Set the ExecPMCR instruc-
specified in the ExecPMCR tion input variable SeqNo to
instruction input variable a value between 000 to 999
SeqNo is a value other than in decimal notation.
000 to 999 in decimal nota-
Check whether the commu-
tion.
nications sequence number
The specified communica- is correct.
tions sequence number
does not exist in the proto-
col data.
The protocol data in the Unit Use CX-Protocol to correct
is incorrect. and transfer the protocol
data.
The program is incorrect. As ExecPMCR instruction
execution conditions, set the
Network Communications
Instruction Enabled Flag
(_Port_isAvailable) to an
N.O.
Protocol data is being trans- Wait for the transfer of pro-
ferred, or a SUM value error tocol data to finish or use
occurred. CX-Protocol to transfer the
protocol data.
The send wait time specified Use CX-Protocol to check
in communications whether the send wait time
sequence step units is too is correctly set.
long.
The CTS (CS) signal from Release the Remote Unit
the Remote Unit cannot be busy status to enable the
set to TRUE (the Remote Local Unit CTS (CS) signal
Unit remains in busy status) to set to TRUE.
because the transmission
control parameter RS/CS
Flow Control is set to "yes".
Wait command can not be Review the program so that
canceled. *_P1(orP2)_PmrWaitRlsCm
d (Wait Release Switch) is
changed to TRUE.
Abort Switch is force-set. Release the Abort Switch.
Remedy
9
9-17