Appendix G  MSG-SND/MSG-RCV Functions (Ethernet)
G.2  Message Receive Function (MSG-RCV)
A-94
( 2 ) Process Result (PARAM00)
The process result is output to the upper byte. The lower byte is used for system analysis.
When an error occurs, take corrective action by referring to the following error contents:
Value of Process 
Result
Meaning
00H In process (Busy)
10H Process completed (Complete)
8yH Error occurred (Error)
Value of Process 
Result
Error Contents Description
80H – Reserved
81H Function code error
Unused function code was received. Check the source function code. 
The following setting is out of range. Check the setting. 
82H Error in setting address 
Data address (request from transmission side)
PARAM08 (coil offset)
PARAM09 (input relay offset)
PARAM10 (input register offset)
PARAM11 (holding register offset)
83H Data size error
The received data size is out of range. 
Check the source data size. 
84H Error in setting circuit number
The circuit number is out of range. 
Check Cir-No (circuit number) of the MSG-RCV function. 
85H Error in setting channel number 
The communication buffer channel number is out of range. 
Check Ch-No (communication buffer channel number) of the MSG-
RCV function. 
86H Connection number error
The connection number is out of range. Check PARAM02 (connection 
number). 
87H – Reserved
88H Communication section error
An error response was returned from the communication section (com-
munication device). Check the equipment connection. In addition, 
check that the remote device is open to communication.
89H Device select error
Unavailable device is set. Check Dev-Typ (communication device 
type) of the MSG-RCV function.