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This document aims to provide system engineers, hardware developers, and prgject decision-makers in the field of industrial automationwith a full-stack technology guide covering chip selection, hardware design. protocol stack development, and system integration.t helpslocal enterprises build independent and controllable HART technology capabilities.

The core challenge of HART hardware design lies in how to simultaneously carry a 4-20 mA DC analog signal, a 1200/2200 Hz FSK AC signal, and possible loop supply voltage on the same pair of wires, ensuring that the three do not interfere with each other and meet stringent industrial EMC standards. This chapter starts with the system architecture and analyzes the design key points layer by layer.

In the field of industrial automation, HART (Highway Addressable Remote Transducer) protocol serves as a core technological link connecting traditional analog equipment with modern digital management systems. Having undergone nearly forty years of industrial field validation, HART has become one of the most widely deployed field device communication protocols globally. By using Bell 202 FSK modulation technology, digital communication signals are superimposed on a traditional 4-20mA analog current loop, achieving dual-mode coexistence of " analog transmission + digital communication . " This design allows companies to endow existing equipment with digital capabilities such as remote configuration, real-time diagnostics, and multivariate transmission without interrupting existing control loops or re-laying cables.

Protocol: HART (HT1200M HART Communication Controller) Operating Temperature: -40-85°C(HT1200M HART Communication Controller) Dissipation Power: International Standard(HT1200M HART Communication Controller) Supply Voltage: 3.3-5.0V(HT1200M HART Communication Controller) Application: for the Fieldbus Instruments(HT1200M HART Communication Controller) D/C: 28pin, 32pin(HT1200M HART Communication Controller) Package: 28pin, 32pin(HT1200M HART Communication Controller) Compatibility: with HT20C15 and SYM20C15(HT1200M HART Communication Controller) Layer: Single Chip, FSK Modem(HT1200M HART Communication Controller) Operation Current: Less Than 200uA(HT1200M HART Communication Controller)

The MC0310 is an OEM built-in module for converting Modbus RTU based instruments to HART. The MC0310 is one of the Microcyber MC series embedded core modules. This series of embedded core modules features the characteristics of same size, same interface, easy upgrade, and simple configuration. It can be widely used in various products such as transmitters, intelligent measuring equipment, instruments, and is an ideal choice for users to quickly develop fieldbus devices. 1. Comply with HART 7.9 protocol standard 2. Support dynamic configuration of Modbus communication parameters 3. Support 6 device variables and 4 dynamic variables

G1003 HART to Modbus Gateway Quickly meet field application needs Help system integrators quickly achieve seamless conversion from HART to Modbus to meet field application requirements. G1003 HART to Modbus Gateway Easy to install Microcyber G-series gateways support DIN rail mounting, making installation simple and convenient. G1003 HART to Modbus Gateway Comply with mainstream control systems Microcyber G-series gateways have been tested and verified with mainstream control systems such as Siemens, Emerson, Schneider Electric, ABB, Honeywell, Rockwell, and others. G1003 HART to Modbus Gateway Simple configuration With the accompanying Modbus configuration tool, users can freely and flexibly set various parameters of the module as needed. G1003 HART to Modbus Gateway Simple application The gateway reads and writes parameter data from user equipment via the HART interface and automatically converts it into Modbus variable-related parameters for communication with the Modbus master station. G1003 HART to Modbus Gateway Wide range of applications This solution is ideal for system integrators building Modbus bus systems, as well as manufacturers of measurement equipment, detectors, and analyzers looking to connect their HART instruments to the Modbus bus.

1. G0310 Modbus to HART Gateway Comply with standard HART 7.9 and Modbus-RTU protocols 2. G0310 Modbus to HART Gateway Support 6 device variables and 4 dynamic variables 3. G0310 Modbus to HART Gateway DIN rail mounting and provide DD and DTM files for easy system integration.

HART Temperature Transmitter： 1. Certified by CE, Ex ia, EMC, SIL2 and HART 2. Dual channel, supporting multiple thermistor and thermocouple sensors, and supporting redundant hot backup of sensors 3. Supports 2/3/4-wire when connecting thermal resistors 4. The cold end compensation accuracy of the thermocouple can reach ± 0.15 ℃ (externally connected Pt100) 5. High precision (Pt100: ± 0.1 ℃), low-temperature drift (Pt100: ± 0.003 ℃/℃) 6. EDD/SSD/FDI/DTM are provided, which are compatible with various DCS systems