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NCS-MH105 is a converter device for MODBUS-RTU protocol to HART protocol. As a MODBUS host, NCS-MH105 communicates with the device with MODBUS-RTU communication ability, it converts the data in the device to HART device variables, and supports 4~20mA current output.

NCS-MH105 converter supports 4 dynamic variables, 6 device variables, all HART universal commands, common practice HART commands and standard MODBUS-RTU protocol. The mechanism size is 96 mm * 56 mm, which not only matches standard Adam module housing, also can be installed to device through positioning hole.

HART Bus gives power supply to NCS-MH105 converter. RS485 electrical interface requires an external 5V power supply.
　　　
NCS-MH105 Application：
Gas detectors
Analyzers
Positioners
Any smart device with MODBUS protocol

Compliant with HART 6.0 standard, provide HART communication ability to MODBUS device
Support all HART universal commands and common practice HART commands
Support device specific commands on demand
Support HART multidrop mode
Support HART communication burst mode
Support handheld 375/475
Electrical interface connected withMODBUS device supports TTL level, RS485 and RS232

Physical Parameters：
Bus signal： 4~20mA output with HART protocol,
digital communication
Bus power supply：11.9 ~ 42V
Operating temperature： -40 ~ 85℃
Humidity range： 5% ~ 95%，non-dew
Mechanism size： 120mm × 54mm（can be customized）

Supportive MODBUS Communication Parameters:
Address： 1 ~ 255
Baud rate： 2400 / 4800 / 9600 / 19200
/35700 / 38400 / 57600 bps
Data bit： 7 / 8 bits
Calibration： odd / even calibration
Stop bit： 1 / 2 bits
CRC calibration： low byte ahead / high byte ahead
Data format： support various data formats

Supportive MODBUS Function Code：
Function Code 1： read loop status
Function Code 2： read discrete input status
Function Code 3： read keeping register value
Function Code 4： read input register value
Function Code 6： write loop
Function Code 16：write multiple register values