Modbus Server Welcome


Modbus Server implements the Modbus TCP and RTU protocol. The application is a TCP server and an RTU slave. The TCP server listens on the specified port and accept connections from TCP clients regardless of the clients IP Address. The RTU Slave listes on a connected serial port (e.g. USB converter) and replies to Masters regardless of which Slave the master is trying to access.
Modbus Server works natively on 64bit Intel based Macintosh computers running Snow Leopard (Mac OS X 10.6) or newer.
This Application is based on Modbus Application Protocol specification V1.1b3, published in 2012 by
The Modbus protocol specification is available for download under this link.
Upgrade to Modbus Server Pro:

Modbus Server Help Index Modbus Functions and Registers