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

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

Editors’ Review

Download.com staff
This library provides robust R/W data access for MODBUS devices. It offers universal communication capabilities through a function library for various applications.

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  • Pros

    • Supports standard and extended data reading.
    • Includes dedicated VBA functions for easier integration.
    • Allows both reading and writing of MODBUS data.
    • Handles Coil and Holding Register types.
    • Clear Pascal function declarations provided.

  • Cons

    • No mention of specific error handling beyond return codes.
    • Documentation for error codes is not provided.
    • Limited information on performance metrics.
    • No details on supported MODBUS communication modes (RTU, ASCII, TCP).
Icon of program: MODBUS RTU Serial RS232/R…

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

Download now

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

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Full Specifications

GENERAL
Release
Latest update
Version
2018.05.23.2
OPERATING SYSTEMS
Platform
Windows
Operating System
  • Windows 10
  • Windows 7
  • Windows 2003
  • Windows XP
Additional Requirements
None
POPULARITY
Total Downloads
3,864
Downloads Last Week
4
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Program available in other languages

Last Updated

Developer’s Description

By AE
Perform MODBUS universal communications via the MBusDrv.dll function library.
MODBUS devices R/W datas access with [MBusDrv.dll] library.

Exported functions (pascal declarations) : {* Standard read datas from MODBUS device *} function 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] of byte (device datas) Return integer (0=OK) {* Extended read datas from MODBUS device *} function GetMBDataEx(const SlaveAddr : word; const ReadType : word) : pointer; stdcall; SlaveAddr : word (1..254) ReadType : word (0=Coils / 1=Holding Registers) Return pointer of 255 byte (device datas or 0=Error) {* VBA (Microsoft Visual Basic) read datas from MODBUS device *} function GetMBDataVBA(const SlaveAddr : LongInt; const ReadType : LongInt) : pointer; stdcall; SlaveAddr : longint (1..254) ReadType : longint (0=Coils / 1=Holding Registers) Return pointer of 255 byte (device datas or 0=Error) {* Standard write data to MODBUS device *} function 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 : word Return integer (status code >=0=OK) {* VBA (Microsoft Visual Basic) write data to MODBUS device *} function 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 Return longint (status code >=0=OK).

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