Mitsubishi Electric MELIPC MI5000 Series Programming Manual page 117

Return value
Return value
0(0000H)
Other than 0
For details on error codes, refer to the following section.
Page 116 Function error codes
Relevant function
Page 99 mdClose
Page 103 mdOpen
Description
Normal
Error
3 DETAILS OF FUNCTIONS
3.3 MELSEC Data Link Functions
3
115