User`s manual

9 - 4 9 - 4
MELSEC
9 MELSEC DATA LINK LIBRARY
9.4 Procedure for Programming
The following describes the procedure for programming using the MELSEC data link
library.
In this section, it is assumed that the software package has already been installed.
· · · · · ·
1) Power on the personal computer and start Windows .
Yes
Yes
Yes
No
No
No
Has the utility setting
been performed?
2) Perform utility setting.
See Chapter 7 for the operation.
Change the setting?
3) Perform setting so that the MELSEC data link library can be used.
4) Create a user application using the MELSEC data link library.
Open the communication port.
(mdOpen)
Communicate with the PLC CPU and
communication board using various
functions.
End program?
Close the port that was opened by
the mdOpen function. (mdClose)
(To the next page)
See Section 9.3.
· · · · · ·
See HELP on MELSEC
data link function
in the software package.