20.3 ERROR MESSAGE AND SYSTEM ALARM
20.3.2 List of Error Message/System Alarm
20
- 23
17
ADDI
TIO
N
TIMES
RE
SET FOR
MA
INTENA
N
C
E
18
INST
ALL
A
TI
ON OF
B
O
OT
O
S
A
ND
ST
A
N
DA
RD OS
19
MAIN
TE
NANCE A
ND
INSP
ECTIO
N
20
ERROR MESS
AGE
AND SYSTE
M
ALA
R
M
AP
PENDI
C
E
S
IND
E
X
402
Communication timeout.
Confirm communication
pathway or modules.
The time-out error occurred during communicating.
1. Confirm the cable omission, the communication unit
mounting status and status of the PLC.
Channel No. is not displayed in error code or error
message in the case an error occurs when using the multi-
channel function.
Refer to the following manual to identify the channel No. in
error.
GOT1000 Series Connection Manual (Description of
"Checking for normal monitoring" of each connection type)
2. This error may occur when the load of PLC CPU becomes
heavier while accessing other stations. In such case,
transfer the data of the other station to the host station
PLC CPU and monitor them at the host.
3. Put COM instruction when the PLC scanning is long.
403
SIO status error. Confirm
communication pathway
or modules.
Either of the overrun error, parity bit error or flaming error was
generated when the RS-422 / RS-232 communication was
received.
Confirm the cable omission, the communication module
mounting status, status of the PLC.and the transmission
speed of the computer link.
Channel No. is not displayed in error code or error message
in the case an error occurs when using the multi-channel
function.
Refer to the following manual to identify the channel No. in
error.
GOT1000 Series Connection Manual (Description of
"Checking for normal monitoring" of each connection type)
406
Specified station access is
out of range. Confirm
station no.
1. Station numbers other than master/local station are
specified at the CC-Link connection (via G4).
2. A PLC CPU other than QCPU is accessed.
Confirm the station number of the project data.
407
Accessed other network
by NET/10 unit. Change
network setting.
• When monitoring the same network as the GOT
Accessed other networks when connecting MELSECNET/H
and MELSECNET/10 (PLC to PLC network). Confirm the
network number of the project data so as not to access to
other networks.
• When monitoring other networks
Reconfigure the [Routing Information Setting] of GT
Designer2 or the [Routing parameters] of GX Developer.
• When the GT15-75J71LP23-Z/GT15-75J71BR13-Z is used
These models cannot monitor other networks.
• Confirm Network No. of the project data, in order for not
accessing other networks.
Error
code
Error message
Action
Channel
No.
storage
