Melsec Data Link Library - Mitsubishi Electric Q81BD-J61BT11 User Manual

9 MELSEC DATA LINK LIBRARY

9 MELSEC DATA LINK LIBRARY
This chapter explains an overview of the functions included in the MELSEC Data Link
Library.
The functions provided by the MELSEC Data Link Library are used when creating a
user program that communicates with a programmable controller CPU. With these
functions, the user can perform communications without worrying about the hardware
type of the destination device or the communication protocol.
The following table lists the functions that are provided by the MELSEC Data Link
Library that comes with the utility software.
mdOpen
mdClose
mdSendEx
mdReceiveEx
mdRandWEx
mdRandREx
mdDevSetEx
mdDevRstEx
mdTypeRead
mdControl
mdBdRst
mdBdModSet
mdBdModRead
mdBdLedRead
mdBdSwRead
mdBdVerRead
mdInit
mdSend
mdReceive
mdRandW
mdRandR
mdDevSet
mdDevRst
For details of the functions, refer to MELSEC Data Link Library Reference Manual.
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Function name
Opens a communication line.
Closes a communication line.
Batch writes devices. (Extended function
Batch reads devices. (Extended function
Writes devices randomly. (Extended function
Reads devices randomly. (Extended function
Sets a bit device. (Extended function
Resets a bit device. (Extended function
Reads the programmable controller CPU type.
Remote operation of the programmable controller CPU.
(RUN/STOP/PAUSE)
Resets the board.
Sets the mode of the board.
Reads the mode of the board.
Reads the LED information of the board.
Reads the switch status of the board.
Reads the version information of the board.
Refresh the programmable controller device information table.
Performs batch write of devices.
Performs batch read of devices.
Writes to devices randomly.
Reads from devices randomly.
Sets a bit device.
Resets a bit device.
1: A function in which the access range is extended according to the extension of the
device points at the access target. It is accessible to all device numbers.
Use extended functions when creating a new program.
POINT
MELSEC
Description
*1
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*1
)
*1
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