Ethernet communication for compact PLC

23 July 2013

Mitsubishi Electric has extended the capability of its MELSEC FX3G Compact PLC with the release of a new Ethernet embedded CPU – the FX3GE, in addition to the standard USB and RS422 communication ports.

The new CPU adds two analogue inputs (0-10V DC or 4-20mA) and an analogue output (0-10V DC or 4-20mA).

Other features of the new MELSEC FX3GE include the ability to set two user keywords for secure PLC access, built-in high-speed counters and interrupts for system feedback and control, built-in two-axis positioning capability with dedicated inverter protocol, and a choice of models offering 24 or 40 I/O as standard, expandable to 256 I/O.

The embedded Ethernet capability allows users to take advantage of remote monitoring, maintenance and data sharing with HMIs and higher-level systems over high speed 10Base-T/100Base-T communications. This also adds the facility for web based data monitoring as standard, enabling users to read PLC information from any networked device using a standard web browser, with keyword protection preventing unauthorised PLC access.

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