A new gateway designed to convert Modbus ASCII or Modbus RTU serial signals into Modbus TCP Ethernet has been released by B&B Electronics. The MESP211 
connects Modbus devices to Ethernet networks to monitor and control Modbus devices from anywhere on the Ethernet LAN or WAN, and flexible configuration allows serial and Ethernet, Masters and Slaves.
The solution is designed for harsh environments and cramped spacesmeasuring just 3.1 x 0.9 by 2.0 in, 7.9 by 2.3 by 5.1cm and features an operating temperature of -40 to 80°C. Robust industrial specifications include 61000-6-2 EMC level 3 for harsh environments along with IEC60068-2-27 for shock, -6 for vibration and -32 for free fall), and a rugged IP30 metal case that is panel (standard) or DIN rail mountable (with optional adapters).
Suitable applications include: temperature control equipment, HVAC systems, industrial PLCs, power sub-metering, and communications to solar trackers and inverters.
The device can be controlled using the company’s Vlinx Manager Software, which installs on the user’s PC and lets them remotely manage the MESP211 over a LAN or WAN via the built-in web server. Access to Modbus messaging priority control and view messaging status in real time via the built-in traffic monitor are added available features with this platform.
This 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.
B&B Electronics
