Related Manuals for Microflex Microlink-HM+
Summary of Contents for Microflex Microlink-HM+
- Page 1 101-0097 MicroLinK HM+ HART Protocol Modem HART to Modbus Accumulator USB, RS-485 or RS-232 Communications Port DIN Rail Mount Installation Operation Specifications 620-0034 R1 © Microfl ex 2016-2020...
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Page 2: Table Of Contents
(1) This device may not cause harmful interfer- ence, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by Microflex could void the user’s authority to oper- ate this equipment. Emissions EN55022: 1998... -
Page 3: Overview
Overview MicroLink-HM+ is a HART® protocol modem to USB/RS-485/RS-232 serial interface. In addi on to func oning as a HART protocol modem, it can also be confi gured to con nuously poll HART devices, fi lling modbus registers with device values without any addi onal HART so ware. -
Page 4: Block Diagram
MicroLink-HM+ Block Diagram HART LED COM LED HART Loop 5-Pin Terminals Power Terminal Block Supply 1 - DC (+) HART 2 - DC (-) Modem Microcontroller 3 - GND RS-485/RS-232 4 - TX B Transceiver 5 - RX A Modbus Register Tables HART Loop Screw Terminals USB Port... -
Page 5: Moun Ng
Mounting The DIN rail mounting clip is compatible with widely used 35mm EN 50022 rails. It can be snap mounted and removed from the mounting rail without tools for quick installation and servicing. Power Supply MicroLink-HM+ requires an external 5 to 30 volt DC power supply. Posi ve side to Pin 1, and nega ve side to Pin 2 on the 5-pin screw terminal block. -
Page 6: Serial Port
Serial Port The serial port can be confi gured for RS-485 or RS-232 protocol using the HM Confi gurator app so ware or by wri ng to modbus register 775. The factory default is RS-485 mode, 1200 baud odd parity. RS-485 Serial Protocol An RS-485 bus can consists of mul ple RS-485 devices connected in parallel to a bus cable. -
Page 7: Modbus Registers
Modbus Registers Register loca ons and details can be found in the HM Confi gurator so ware manual. The manual is included on the CD and can be downloaded from www.microfl x.com. Write Locking Wri ng to registers can be locked or write-protected a er se ng the confi gura on to prevent unwanted changes to the confi... -
Page 8: Specifi Ca Ons
Specifications Power Supply Range ..........................5 to 30 Volts DC Max Opera ng Current ....................25mA @ 5V, 5mA @30V Typical Opera ng Current ..................8.8mA @ 12V, 5.2mA @ 24V Field Connections Termina on ....................Pluggable Screw Terminal, 26-16 AWG + Power Supply (+) ............................ - Page 9 Default Settings Serial Port ..................RS-485 Mode, 1200 Baud, Odd Parity, 1 Stop Modbus Address ..............................1 Fill Modbus Registers ................Disabled (HART Protocol Modem Mode) Poll Interval ............................. 2 Seconds Environmental Opera ng Temperature ....................-30°C to 60°C (-22°F to 140°F) Storage Temperature ....................-40°C to 85°C (-40°F to 185°F) Humidity ........................
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Page 10: Warranty
RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF MICROFLEX SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER. MICROFLEX, LLC WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA, PROFITS, USE OF PRODUCTS, OR INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF ADVISED OF THE POSSIBILITIES THEREOF.
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