3.3 Message Communication Error
3.3.3 Checking the Message Function
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Troubleshooting Errors in Message Communication
3.3.3 Checking the Message Function
If message communication with the PLC or touch panel of another manufacturer or the computer does not start, the
details of the error can be determined by checking the process result of the message function and the status.
The procedures for checking the process result of the message function, status, and parameter settings are given below.
( 1 ) Checking the Process Result and the Status
The process result of the message function and the status can be checked by referring to the following parameters.
The procedures for checking the process result and the status and the associated remedies when using the message
transmission or message receive function are given below.
Use the register list of MPE720 to check the data of the registers.
Example: When DA00000 was specified as the start address of the parameter list
Parameter Details
Process Result (PARAM00)
Displays the error that has occurred during the execution of the message function.
This information is useful for troubleshooting the errors that occur when message function
parameters are not properly set.
Status (PARAM01)
This information is useful when the error “Communication section error (88xxH)”, whose
details cannot be determined with the process result (PARAM00), has occurred.
When using the message transmission function When using the message receive function
Execute
Abort
Dev-Typ
Pro-Typ
Cir-No
Ch-No
Param
MSG-SND
Busy
Complete
Error
DA00000
Execute
Abort
Dev-Typ
Pro-Typ
Cir-No
Ch-No
Param
MSG-RCV
Busy
Complete
Error
DA00000
Parameter List
Register F 0
DW00000
(1) Process result
DW00001
(2) Status
PARAM00
PARAM01
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