Mitsubishi Electric MELSEC Q Series User Manual page 230

9
TROUBLESHOOTING
Error code
Error
(Hex.)
C1A1
H
C1A2
H
C1A3
H
C1A4
H
C1A5
H
Extended error
C1A6
H
C1A7
H
C1A8
H
C1A9
H
C1AA
H
C1AB
H
9
- 17 9.4 Error Code
9.4.2 Error code list
Table 9.6 Communication error of the EtherNet/IP module (Continued)
Error detail
Connection timed out.
A client attempted to send a connection-oriented
message (Class1 or Class3 Tag communication)
over a connection that has been timed out.
Tag communication timed out before receiving a
reply.
Parameter error in Tag communication.
In the following services, there is a Connection
Tick Time and Connection time-out combination
that is not supported by an intermediate node.
•Unconnected_Send service
•Forward_Open service
•Forward_Close service
The message for Unconnected _Send service is
too large.
Unconnected ACK without reply.
The message was sent via UCMM Tag
communication and ACK was received, a data
response message was not received.
Insufficient connection buffer memory is
available in the target and router devices.
Network bandwidth is not available for data.
A producer device in the connection path cannot
allocate sufficient bandwidth for the connection
on its link.
No consumed connection ID filter is available.
The target device is not configured to send
scheduled priority data.
If required to make a connection that specifies
scheduled priority, the device is unable to send
packets during the scheduled portion of the
network update time interval.
Schedule signature mismatch.
The connection scheduling information of the
Originator device is not consistent with that of the
Target network.
Schedule signature validation is not possible.
The connection scheduling information in the
Originator device cannot be validated on the
Target network.
Action
Find the conditions for the target device to notify
this error and take measures.
( the manual for the target device)
•Check if the target device is operating normally.
•Check if the line status is normal
•The line may be congested. Retry after a while.
•Find the conditions for the target device to notify
this error and take measures. (
for the target device)
Find the conditions for the target device to notify
this error and take measures.
( the manual for the target device)
the manual