Fully compliant with Modbus/TCP, the Modbus Advantech’s Modbus gateways offer a convenient solution for connecting devices or controllers running the Modbus serial protocol (Modbus/ASCII or Modbus/RTU) to an Ethernet network. Featuring built-in Ethernet switches, Advantech’s Modbus gateways provide transparent connectivity from Modbus/ASCII and Modbus/RTU serial devices to Ethernet-based Modbus/TCP equipment. They have flexible installation options and meet web browser configuration requirements for remote monitoring applications. Our Modbus gateway products provide a simple and cost-effective means to incorporate the advantages of remote management of and data accessibility to devices that otherwise cannot connect to a network, with easy conversion of Modbus/ASCII and Modbus/RTU to Modbus/TCP. Furthermore, for the EKI-1221D/1222D, cascading connections support Ethernet auto-bypass, thus preventing accidental power failure in the event of a Modbus gateway unexpectedly shutting down.

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