MODBUS RTU Serial RS232/RS485 and TCP/IP for Windows

MODBUS device R / W data access sa [MBusDrv.dll] library.

Mga naka-export na function (pascal declarations):

{* Standard read datas mula sa MODBUS device *}
function na GetMBData (const SlaveAddr: byte; const ReadType: boolean; var Data: array [0..254] of byte): integer; stdcall;
SlaveAddr: byte (1..254)
ReadType: boolean (false = Coils / true = Holding Registers)
Data: array [0..254] ng byte (datas ng aparato)
Bumalik integer (0 = OK)

{* Pinalawak na datas na nabasa mula sa MODBUS device *}
function na GetMBDataEx (const SlaveAddr: word; const ReadType: word): pointer; stdcall;
SlaveAddr: salita (1..254)
ReadType: word (0 = Coils / 1 = Holding Registers)
Bumalik pointer ng 255 byte (datas ng device o 0 = Error)

{* VBA (Microsoft Visual Basic) basahin ang mga datas mula sa MODBUS device *}
function na GetMBDataVBA (const SlaveAddr: LongInt; const ReadType: LongInt): pointer; stdcall;
SlaveAddr: longint (1..254)
ReadType: longint (0 = Coils / 1 = Holding Registers)
Bumalik pointer ng 255 byte (datas ng device o 0 = Error)

{* Standard write data sa MODBUS device *}
function na PutMBData (const SlaveAddr: byte; const WriteType: boolean; const DataAddr: byte; const Data: word): integer; stdcall;
SlaveAddr: byte (1 ..254)
WriteType: boolean (false = Coil / true = Holding Register)
DataAddr: byte (1..255)
Data: salita
Bumalik ng integer (code ng katayuan> = 0 = OK)

{* VBA (Microsoft Visual Basic) isulat ang data sa MODBUS device *}
function na PutMBDataVBA (const SlaveAddr: longint; const WriteType: longint; const DataAddr: longint; const Data: longint): longint; stdcall;
SlaveAddr: longint (1..254)
WriteType: longint (0 = Coil / 1 = Holding Register)
DataAddr: longint (1..255)
Data: longint
Bumalik mahaba (status code> = 0 = OK)