Fieldbus & Industrial Networking


Ethernet direct input-to-output

December 2005 Fieldbus & Industrial Networking

Acromag Ethernet modules are an easy way to link inputs to outputs - without a PLC, PC or master CPU.

Sensor inputs at Point A (be they six channel 4-20 mA, 0-10 V d.c., thermocouples or RTD's input, or 12 digital inputs), can be connected to process signals at Point B (with a six channel 4-20 mA or 0-10V d.c. output, or 12 digital input/outputs).

The modules have a built in web page, and are therefore configured using a standard web browser (such as Internet Explorer), so there is no need for any complicated programming software. Each unit can be set with an IP address. This allows the modules to be connected to an existing infrastructure/network, whether it be copper, fibre or wireless. The digital modules allow for bi-directional communication.

A simple application example: 6x 4-20 mA inputs on module A, connected to a network, and then, connected to the same network would be the output module, having 6x 4-20 mA outputs. Communication is done via standard IP addressing over standard Ethernet. An input module speaks directly to an output module, and multiple modules can be connected or multiplexed, with the use of a standard network hub or switch. Acromag also offers a large range of modules for Profibus, Modbus TCP/IP, Ethernet/IP, Lonworks, analog signal conditioning, limit alarms/trips, and more.



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