B&B: Modbus Communications Gateways

The MESP211 converts Modbus ASCII or Modbus RTU serial signals into Modbus TCP Ethernet.

Aw 19502 1311np Bb

The gateway makes it possible to monitor and control Modbus devices from anywhere on the Ethernet LAN or WAN, and flexible configuration allows serial and Ethernet, Masters and Slaves. Designed for harsh environments and cramped spaces, the compact (3.1 x 0.9 x 2.0 inch, 7.9 x 2.3 x 5.1 cm) gateway features a -40 to 80 °C operating temperature, heavy industrial specifications - 61000-6-2 EMC level 3 for harsh environments; IEC60068-2-27 for shock, -6 for vibration and -32 for free fall -  and an IP30 metal case that is panel (standard) or DIN rail mountable (with optional adapters). Applications include temperature control equipment, HVAC systems, PLCs, power sub-metering, and communications to solar trackers and inverters. The company's Vlinx Manager Software installs on the user's PC to manage the unit over a LAN or WAN via its built-in Web server. Users can take advantage of Modbus messaging priority control and view messaging status in real time via the built-in traffic monitor. The one-port gateway works with RS-232/422/485 serial signals and is available in two models: the MESP211D offers a DB9 Male connector while the MESP211T offers a terminal block connector.

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