14 MELSEC DATA LINK LIBRARY
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MELSEC DATA LINK LIBRARY
This chapter explains the features of the functions provided by the library.
These functions are used when creating a user program to communicate with a programmable controller CPU.
With these functions, a user can communicate without being aware of hardware types or communication protocols on the
target.
The following table shows the list of MD functions which are provided with the software package.
*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.
*2 For the version of CC-Link IE Field Network board and SW1DNC-CCIEF-B that can be used for the functions, refer to the following
section.
Page 223 New and Improved Functions
For details on the MELSEC data link library function, refer to the following manual.
MELSEC Data Link Library Reference Manual
Function name
Description
mdOpen
Open a communication line.
mdClose
Close a communication line.
mdSendEx
Batch write devices. (Extended function
)
Send data. (SEND function) (Extended function
)
mdReceiveEx
Batch read devices. (Extended function
Receive data. (RECV function) (Extended function
mdRandWEx
Write devices randomly. (Extended function
mdRandREx
Read devices randomly. (Extended function
mdDevSetEx
Set a bit device. (Extended function
)
mdDevRstEx
Reset a bit device. (Extended function
)
mdRemBufWriteEx
Write data to the buffer memory of a remote device station.
mdRemBufReadEx
Read data from the buffer memory of a remote device station.
mdTypeRead
Read the type of programmable controller CPU.
mdControl
Remote operation of programmable controller CPU. (RUN/STOP/PAUSE).
mdWaitBdEvent
Wait for an event occurrence.
mdBdRst
Reset the board.
mdBdModSet
Set the mode of the board.
mdBdModRead
Read the mode of the board.
mdBdLedRead
Read the LED information of the board.
mdBdSwRead
Read the switch status of the board.
mdBdVerRead
Read the version information of the board.
mdInit
Refresh the programmable controller device address.
mdSend
Batch write devices.
Send data. (SEND function)
mdReceive
Batch read devices.
Receive data. (RECV function)
mdRandW
Write devices randomly.
mdRandR
Read devices randomly.
mdDevSet
Set a bit device.
mdDevRst
Reset a bit device.
Summary of Contents for MELSEC Q80BD-J71GF11-T2
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Page 6: ...4 Disposal Precautions CAUTION When disposing of this product treat it as industrial waste ...
Page 118: ...116 12 MONITORING MEMO ...
Page 140: ...138 14 MELSEC DATA LINK LIBRARY MEMO ...
Page 142: ...140 15 PROGRAMMING 15 1 Precautions on Programming MEMO ...
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