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8. TROUBLESHOOTING
8.2
Error Code
8.2.1
Following is shown the error codes set in the buffer memory request answer area and receive area.
(1) Error codes
Request answer area No. 1 → buffer memory address 66 address
Request answer area No. 2 → buffer memory address 194 address
Request answer are No. 3 → buffer memory address 322 address
Reception area → buffer memory address 450 address
(a) Common
Answer area, receive area
Error
code
206Ch
The specified service cannot be executed
with the specified connection type.
206Dh
An unsupported object has been specified in
OD.
2077h
The specified service cannot be executed
with the specified connection attributes.
2100h
A connection No. that has not been
established on a connection is specified.
2101h
There is a service during specified
connection processing.
2103h
A service that cannot be used has been
specified.
220Fh
The connection for which services remain is
aborted during processing.
2258h
The connection was aborted.
2259h
The service request was denied and the
connection was aborted.
Description
8-2
MELSEC-A
Counter measure
The types of services that can be issued
differ depending on the connection type.
Check that the service can be issued for the
connection type and then execute.
Check the object information set in OD.
The types of services that can be issued
differ depending on the connection attributes.
Check that service can be issued for the
connection attributes and then execute.
Check the connection establishment.
Output a service after the other service
processing is completed.
The services that can be issued vary
depending on the connection type and the
connection attributes. Set service commands
that can be issued in the various cases.
Re-establish the connection.
Re-establish the connection. If this error
code is set when the connection is re-
established, then investigate the connection
setting table parameters.
Comprehensively investigate the
transmission parameters and initial setting
parameters.
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