Rosemount Wireless Transmitter

The Rosemount Wireless Framework operates on the IEC 62591 WirelessHART® protocol at 2.4 GHz DSSS. The primary gateway model is the Emerson Wireless 1410S paired with the 781S Smart Antenna. The network supports up to 100 WirelessHART devices on DeltaV and up to 200 devices on standard configuration. The Smart Antenna wiring distance extends up to 400 m using a single twisted shielded pair of 22–24 AWG cable.

RF power output reaches a maximum of 40 mW (16 dBm) EIRP, with a data reliability rating of greater than 99%. Power input ranges from 10.5 to 30 VDC with Power over Ethernet (PoE) also supported. Host connectivity is available via Modbus TCP/IP, OPC DA, EtherNet/IP, HART-IP, and Modbus RTU (RS-485).

The 781S Smart Antenna enclosure is rated Type 4X and IP66/67, suitable for harsh outdoor and industrial environments. Humidity tolerance is 0 to 99% non-condensing relative humidity. The system meets all industrial environment EMC requirements per EN61326 and NAMUR NE-21, with a maximum deviation of less than 1% span during EMC disturbance. Security is enforced through AES-128 encryption with unique join keys and session keys assigned per device. Gateway redundancy is available through a dual-gateway redundant pair configuration. Mounting options include DIN-rail (TS35/7.5 or TS35/15) or surface mount. Certifications include ATEX, IECEx, FM, CSA, and FCC Part 15. Compatible transmitters include Rosemount 3051S, 702, 802, 848T, 648, 2160, and more.