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MBAXP is a powerful and simple to use Modbus ActiveX control that allows Visual Basic, Excel and other OLE Container applications to quickly and easily access data from a Modbus slave device connected to the PC. MBAXP supports both RTU, ASCII modes and TCP/IP connections. The communication in each instance of MBAXP runs in its own thread. That means: Your program does not stop responding while waiting for Modbus transactions to finish. You can communicate with multiple ports simultaneously.

See the Quick Start Guide.

Supported protocol variants:

Modbus RTU

Modbus ASCII

Modbus TCP/IP

MBAXP Technical Facts and Features:

Multi-threaded for high data throughput

Sample applications included

No runtime fees

Easy control of RS-485 converters with RTS toggle

Data types supported: Integer, Long, Float and Double

Handles multiple ports

One instance per port

Event driven

You get an event whenever a transaction has finished

Broadcast (slave ID 0)



01: Read coil status

02: Read input status

03: Read holding registers

04: Read input registers

05: Force single coil

06: Preset single register

15: Force multiple coils

16: Preset multiple registers

23: Read/Write registers

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