Mitsubishi Electric MELIPC MI5000 Series Programming Manual page 101

3.3
MELSEC Data Link Functions
This section shows the details of MELSEC data link functions.
mdClose
Closes a communication line (channel).
Format
short mdClose(long lPath)
Argument
Argument Name
lPath Path of channel
Description
• This function closes the channel opened by the mdOpen function.
• When using multiple channels, close the channel one by one.
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 103 mdOpen
Description
Specify the path of the opened channel.
Description
Normal
Error
IN/OUT
IN
3 DETAILS OF FUNCTIONS
3.3 MELSEC Data Link Functions
3
99