McCrometer ProComm - Product Interfaces; Host Interface; Local Interfaces, Jumpers and Switches

30125-48 Rev. 1.0 | 05AUG2021
Page 3
Product Interfaces
3.0 Product Interfaces
3.1 Host interface
Analog Output 1: Flow Rate
The two-wire 4-to-20mA current loop is connected on two terminals. Refer to the ProComm IOM manual for connection
details. This output represents the process ow rate measurement, linearized and scaled, according to the congured range
of the instrument, and it corresponds to the primary variable. HART Communication is supported on this loop.
Direction Values
(Percent of Range)
Values
(mA or V)
Linear Over-Range
Down 0.0 % 4.0 mA
Up 100.0 % 20.0 mA
Maximum Current +100.0% 20.0 mA
Multi-Drop Current Draw 4.0 mA
3.2 Local Interfaces, Jumpers and Switches
3.2.1 Local Controls and Displays
Some Hart parameters can be set on the ProComm converter user interface. The HART parameters are:
Menu
Position
Parameter Description
8.1 Hart Preamble Number of preamble
8.2 Hart Bus Output Control Hart output control
8.3 Hart Find Device Function
Hart Find Device Function – When armed, will respond to
Command#73. (ON = ARM, OFF = DISARM)
8.4 Hart Write Protect Flag that allows write protect through command #128
8.5 Device Address Device address for communication
See the ProComm IOM manual for specic converter function codes and MCP commands.
3.2.2 Internal Jumpers and Switches
No internal jumpers or switches are used for HART protocol.