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Modbus™ is an industrial communication protocol developed in 1979 used to establish master slave/client server communication between intelligent devices. It is the most widely used network protocol in the industrial manufacturing environment.
Modbus™ TCP/IP (Ethernet) is the common transport protocol of the internet and Modbus™ TCP/IP can provide a reliable data transport mechanism between machines. Ethernet has become the standard of corporate enterprises and is becoming more common for factory networking. Using Ethernet TCP/IP in the factory allows true integration with the corporate intranet and systems that support the factory.
To learn more about Modbus™, visit their web site at www.modbus.org.
ADVANTAGE has implemented Modbus™ RTU communication on Sentra HE, Regal HE and Maximum HE instruments. The physical connection is made using the standard RS-485 port.
RS-485 communications port used on Advantage instruments for SPI and Modbus™ RTU communications.
Example of industrial grade RJ45/IP67 port connection for Modbus™ TCP/IP network interface.
ADVANTAGE has also implemented Modbus™ TCP/IP on Sentra HE and Regal HE instruments. A circuit board is attached to the standard instrument to convert the ModbusTM RTU to ModbusTM TCP/IP. An industrial grade RJ45/IP67 connector is generally provided on the unit to easily connect to the plant network. A variety of connectors can be supplied to meet customer needs and facility standards.
The Modbus™ RTU and Modbus™ TCP/IP interface allows the instrument to communicate with a variety of devices including primary processing equipment controls, PLC's and many more. Modbus™ can communicate information including setpoint, retransmit of setpoint, actual temperature, deviation alarm, sensor failure and remote start / stop.
The Modbus™ TCP interface can be configured to any user IP/Subnet. Configuration is achieved using a utility program that runs on Windows™ based PC's.
Advantage instrument with Modbus͐2 TCP/IP
add-on circuit board.
Close up view of the Modbus™ TCP/IP connection and circuit board.
For more information about Modbus Communications and Components
call the Advantage Sales Department at 317-887-0729.