Slave network controller HART®

HART® (Highway Addressable Remote Transducer) is a digital communication protocol that is based upon the Bell 202 telephone communication standard. By using FSK (frequency shift keying) to superimpose low level digital signals on top of an analog 4-20 mA signal, two simultaneous communications channels exist. The 4-20 mA signal communicates the primary measured value, and the digital signal communicates additional device information to the plant control system. Digital signal on conventional 4-20m ADC analog signal 1200 bps binary phase - continuous frequency-shift-keying Master - Slave communication Distances up to 1800 meters/network (up to 15 devices) EDDL (IEC 61804-2, EDDL) with methods for all supported Common Practice & Device Specfic Commands Complies with HART Protocol Specification document HCF_SPEC-13 for rev. 7.3 Network Protocol HART (Highway Addressable Remote Transducer) was developed by Emerson for the purpose of communicating a digital signal over analog (4-20 mA) input. It is perhaps the most widely used type of digital protocol. Network Service Can be fitted to either MX or QX