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8. TROUBLESHOOTING
8.2.2
Following is shown the error code that is returned to the partner station via the communication circuit.
(1) Connection control
(a) Initiate
(2) VFD control
(a) Status
(3) OD control
(a) GetOD
(b) PutOD
Communication circuits
Class
Initiate (0)
E_INIT_MAX_PDU_SIZE_INSUFF (1)
Initiate (0)
E_INIT_USER_DENIED (4)
Class
Access (6)
E_ACCESS_OBJ_INVALIDATED (1)
Class
Access (6)
E_ACCESS_OBJ_NON_EXIST (7)
OD (7)
E_OD_OERFLOW (2)
Class
OD (7)
E_OD_OERFLOW (2)
DEFINITION (3)
E_DEF_OBJ_ATTR_INCONSIST (2)
Code
• The number of maximum simultaneous
processing services is incorrect.
• The support service setting is incorrect.
• A connection that has already been
established was specified.
Code
• An error has occurred in the PC CPU.
Code
• An undefined OD was specified.
• An undefined OD was specified (the value
exceeded the maximum index value
registered in the specified index).
Code
• The OD was defined to a value that
exceeded the maximum number of
registrations.
• The index value is not in the OD header
specification range.
• An object that is not supported was defined.
8-8
MELSEC-A
Cause
Cause
Cause
Cause
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