B&B Electronics: Modbus Ethernet-to-Serial Gateways

Thursday, January 22, 2009

ESR series gateways are a cost effective way to connect serial Modbus ASCII/RTU devices with Modbus/TCP Ethernet as well as solve many other real-world Modbus problems such as converting ASCII to RTU, remapping conflicting Modbus ID's or connecting two Modbus devices hardwired with different baud rates. With zero-tolerance for unexpected downtime on today’s factory floor, these Modbus gateways, designed and built by B&B Electronics, offer peace-of-mind for plant operation managers around the world. Vlinx™ Modbus Gateways boast an extensive line-up of Ethernet port configurations – from standard RJ-45 copper to almost any fiber optic option. Versions are available with an additional Ethernet port that functions much like an Ethernet switch, allowing pass-through connectivity for other Ethernet devices. The port can also be used to “daisy chain” multiple gateways. Serial ports can be accessed over a LAN/WAN using Direct IP Mode connections. Serial data rates up to 230 kbps ensure maximum network flexibility. Easy to use software supports Modbus messaging priority control and management via multiple TCP/IP client sessions. Rugged MESR gateways feature a slim IP30 DIN mount case, pluggable terminal blocks, and 10-58 VDC operation.        

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