CiDRA SONARtrac Quick Start - Manual (Page 21)

4
HART COMMUNICATIONS
4.1 Introduction
The SONARtrac transmitter implementation of HART supports HART
Universal Command Revisions 5 and 6 as well as multi-drop, with a
configurable Polling Address. It does not support Burst Mode at this
time. The SONARtrac transmitter will appear as a GENERIC device
on the HART Model 275 Handheld, for example. Most commands are
either Universal or Common Practice commands; therefore, the
SONARtrac transmitter will work with a host that can communicate
with a generic device.
DDL files exist, but have not been submitted to the HART
Communication Foundation (HCF) as of this time.
4.2 Setup
4.2.1 Internal Vs External Current Source
The 4-20mA current setting is the most important configuration setting
for the HART interface. Either Internal or External power may be
selected.
Most of the other HART configuration settings will typically not be
changed.
OUTPUT CONFIG OUTPUT CONFIG
●4-20mA CH1
→POWER SEL
EXTERNAL
●4-20mA CH1
→POWER SEL
INTERNAL
Figure 3 SONARtrac Front Panel Menu Power Select Setting Internal and
External
Copyright © 2007 CiDRA Corporation Page 4-1
20984-01 Rev 01