Microlink 101-0029 Installation Operation & Specifications Manual

Rs-232 hart protocol modem hart device to modbus accumulator din rail mount

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MicroLinK HM

RS-232 HART Protocol Modem

HART Device to Modbus Accumulator

DIN Rail Mount

Setup Software

Installation

Operation

& Specifications

Manual

The MicroLink-HM 101-0029 is an RS-232 to HART® protocol modem with managed HART master ming to func on

as either a primary or secondary HART master - elimina ng the need for external CD monitoring and RTS control.

It can also be used as a HART to Modbus Concentrator polling up to 16 HART devices. Power can be taken from the

serial port DTR handshake line or an external 5 to 30 volts DC power supply.

When used as a HART protocol modem it provides the hardware interface between Highway Addressable Remote

Transducer devices (HART) and a computer with an RS-232 port. Unlike many HART modems, communica ons

direc on control is handled internally so there is no need to handle tricky request-to-send (RTS) handshake ming,

greatly simplifying so ware development and enabling the MicroLink-HM modem to be compa ble with common

USB to RS-232 serial converters. Serial port baud rates can be set from 1200 to 57,600 and parity can be odd, even,

or none. HART protocol communica ons between the MicroLink-HM and HART devices is always 1200 baud, odd

parity.

MicroLink-HM can be conﬁ gured to poll up to 16 HART devices and save the HART device data into modbus

registers. Modbus RTU commands can then be used to read the HART device data. Conﬁ gura on is simple

using the included MicroLink-HM Conﬁ gura on so ware. Se ngs are saved in modus registers so modbus RTU

commands can also be used to edit the MicroLink se ngs. No special conﬁ gura on cable is needed for setup as

communica ons is done using the MicroLink-HM serial port.

All manuals and user guides at all-guides.com

101-0029

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Summary of Contents for Microlink 101-0029

Page 1 MicroLink-HM Conﬁ gura on so ware. Se ngs are saved in modus registers so modbus RTU commands can also be used to edit the MicroLink se ngs. No special conﬁ gura on cable is needed for setup as communica ons is done using the MicroLink-HM serial port.
Page 2: Finding The Com Port Number
DTR handshake line or by an external supply. Refer to the Power Supply sec on in this manual for details. MicroLink-HM is compa ble with most HART conﬁ gura on and test so ware. Included on the CD is the Microﬂ ex HART Host applica on.
Page 3: Power Supply
Power Supply Modbus Register Tables Power Supply The MicroLink-HM is powered through the 9-pin RS-232 connector using the RS-232 Data-Terminal-Ready (DTR) handshake line - pin 4. When using DTR for power, no external HART Status LED power supply is required.
Page 4: Home Screen
MicroLink HM Installation - Windows The MicroLink-HM conﬁ gura on so ware is included on a CD with the unit. Simply insert the CD and follow the on- screen prompts to install the so ware. If AutoRun is not conﬁ gured to run the CD ﬁ le when the CD is inserted you will need to navigate to the SetupHM.exe ﬁ...
Page 5 Retries If a HART devices is polled but does not respond, or errors are detected, MicroLink-HM can retry up to 3 mes before indica ng a bad device. If a device is not responding the Modbus values are ﬁ lled with Hart Device Failed register values - setup is done in the Modbus conﬁ...
Page 6: Modbus - Rtu Setup
Set this to match the address that your Modbus master will use to communicate with the MicroLink-HM. The Modbus address can be set to any value from 1 to 247. The MicroLink-HM conﬁ gura on so ware will discover this address as part of the connec on process.
Page 7 Setup Registers The MicroLink-HM conﬁ gura on can be changed using the setup and conﬁ gura on so ware or by wri ng to modbus registers using modbus-RTU commands 6 or 16. Command 6 writes to a single register and command 16 writes to a range of modbus registers.
Page 8: Mode Settings
All manuals and user guides at all-guides.com Mode Settings Bit 9 - Floating point value byte order 0 = Standard byte order (AB - CD) 1 = Swapped words (CD - AB) Bit 8 - Modbus device map 0 = Map register data by HART device 1 = Map register data by variable type Serial Port Settings Bits 13, 12...
Page 9 Device ID informa on is read from each polled device using the devices polling address and HART command 0. The reply to command 0 for each polled device is used to populate the long address table. When MicroLink-HM needs to poll for the device variables, using HART command 3, this table holds the informa on needed to build the 5-byte long address.
Page 10 All manuals and user guides at all-guides.com HART Device Polling Address Table The polling address for each polled device is stored in this table. Two polling addresses in each 16 bit register. If address 0 is used then only one device can be polled and Device 1 should be set to 0. Address 0 is not valid in mul - drop systems.
Page 11 All manuals and user guides at all-guides.com Modbus Register Map - Grouped by HART Device (1 of 3)
Page 12 All manuals and user guides at all-guides.com Modbus Register Map - Grouped by HART Device (2 of 3)
Page 13 All manuals and user guides at all-guides.com Modbus Register Map - Grouped by HART Device (3 of 3)
Page 14 All manuals and user guides at all-guides.com Modbus Register Map - Grouped by Variable Type...
Page 15: Specifications
All manuals and user guides at all-guides.com Specifications Enclosure Modbus RTU Polycarbonate plas c with Stainless Steel Cover Baud Rates ............1200, 2400,4800, 9600 Weight ....................5 ounces 114400, 19200, 38400, 57600 Moun ng ................35mm DIN Rail Clip Parity ..................None, Odd, Even Floa ng point byte order ........
Page 16: Safety Considerations
All manuals and user guides at all-guides.com Safety Considerations Conformity in accordance with Part 2, and Part 15, Subparts A and B of the Federal Communications Rules and Regulations, and ICES-003 of the Industry Canada standards. This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (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.
Page 17: Limited Warranty
All manuals and user guides at all-guides.com Limited Warranty Microﬂ ex, LLC warrants this unit against defects in materials and workmanship for a period of one year from the date of shipment. Microﬂ ex, LLC will, at its option, repair or replace equipment that proves to be defective during the warranty period.