Mitsubishi Electric MELSEC iQ-R C Series Programming Manual page 192

3.3
MELSEC Data Link Functions
This section explains the details of the MELSEC data link function.
mdClose
This function 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
Relevant functions
• Page 198 mdOpen
3 DETAILS OF FUNCTION
190
3.3 MELSEC Data Link Functions
Description
Specify the path of the opened channel.
Description
Normal
Error
For details on the error, refer to the following:
Page 225 ERROR CODE LIST
IN/OUT
IN