The RAD-ISM-900-EN-BUS busable 900 MHz radio is an addition to Phoenix Contact’s Trusted Wireless Ethernet (TWE) portfolio of industrial wireless products. The radio allows the user to collect I/O without a remotely located PLC or I/O data concentrator. The bused I/O is made accessible to the network using the readily available MODBUS protocol. It can easily be integrated into new or existing PLC, SCADA, or DCS systems. A multiple master function has also been added to the 900 MHz TWE radio family. This function can create redundancy and wireless failover connections if a master or host radio is not accessible.
As in the WLAN-BUS and Trusted Wireless Serial radios, the bused I/O is mapped to MODBUS registers, offering easy integration to any MODBUS network. This offers an ideal solution for SCADA systems, as remote I/O can now be collected and reported wirelessly using a single radio device.