Omron CJ1W-SCU32 Operation Manual page 287

Cause and Countermeasure by Command End Code
Main response code Sub response code
(hex)
Value Details Value
00 Normal end 00
04
02 Destination 05
error
06
10 Command 01
format error
02
11 Parameter 0C
error
26 Command 05
error
07
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
(hex)
Check point
Details
Normal end ---
Destination *_P1(orP2)_Timeout
busy Err (Timeout Error)
Response *_P1(orP2)_Timeout
timeout at Err (Timeout Error)
command
source side
Instruction control
data
Error log read
Serial gate- *_P1(orP2)_Timeout
way Err (Timeout Error)
response
timeout
Transmis- *_P1(orP2)_FCSErr
sion line (FCS Check Error) or
error *_P1(orP2)_ParityErr
(Parity Error)
Command Command data
packet too
long
Insufficient Command data
command
length
Parameter Parameters in com-
error mand data
Service exe- ---
cuting
No right to Serial Gateway pro-
execute ser- hibited or not
vice
9 Troubleshooting and Maintenance
Possible cause
---
The Serial Gateway Retry the command or correct the com-
function cannot be munications sequence.
executed by interrupt-
ing the macro
between protocol
macro steps.
When the message If *_P1(orP2)_TimeoutErr is TRUE,
frame is damaged by assume that the command source gener-
noise. ated a response timeout.
• Check the noise condition by an inter-
node test.
• Increase the number of resends at the
command source.
• Perform communications retry if
required.
Response monitor- Set a longer parameter value for
ing time is short. response monitoring time.
Discarding of send Take the correct action after checking the
and receive frame error log.
Serial Gateway If *_P1(orP2)_TimeoutErr is set to TRUE,
Response Timeout assume that the Serial Gateway gener-
occurred. ated a response timeout and take the
appropriate actions.
• Conversion to Use shielded twisted-pair cables.
CompoWay/F com-
Lay power lines separately by using
mand: BCC error or
ducts.
parity error
Increase the number of resends at the
• Conversion to Mod-
command source.
bus-RTU com-
Perform communications retry as
mand: CRC error or
required.
parity error
• Conversion to Mod-
bus-ASCII com-
mand: CRC error or
checksum error
Command length is Set the command data correctly by refer-
long. ring to the command format.
Command length is Set the command data correctly by refer-
short. ring to the command format.
Parameter is not set Set the parameters again, this time cor-
correctly. rectly, after you check the command
data.
Service executing Add retry processing on the command
(The serial communi- source for response code 2605 hex.
cations port received
a sixth command
when five commands
are still waiting for
processing.)
*_P1(orP2)_PmrSgw While the Serial Gateway is prohibited,
ProhSta (Serial Gate- set *_P1(orP2)_SgwDsblCmd (Serial
way Prohibited Flag Gateway Prohibit Switch (Protocol Mac-
(Protocol Macros)) is ros)) from TRUE to FALSE.
set to TRUE.
Remedy
---
9
9-9