HART Communication
2
TI 12A01A01-60EN
This document describes HART communication by the PH450G/SC450G/ISC450G.
Before communicating using the HART protocol, refer to the User’s Manuals for the PH450G/
SC450G/ISC450G for details of the parameters.
HART is a registered trademark of FieldComm Group.
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What is HART Communication?
HART Communication superimposes specific waveforms called HART Communication
waveforms on the 4–20 mA analog signal from a PH450G/SC450G/ISC450G to enable remote
intercommunication between the online PH450G/SC450G/ISC450G and a setup tool (*).
*:
FieldMate, Plant Resource Manager (PRM), or a handheld HART communicator such as the 475 Field Communicator may be
used as the setup tool. It is highly recommended to use the latest model of each setup tool.
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Downloading and installing DD files
To enable HART communication between a PH450G/SC450G/ISC450G and setup tool, the
device description (DD) file of the PH450G/SC450G/ISC450G needs to be installed in the setup
tool. The DD file contains the HART communication details and menu configurations specific to
the PH450G/SC450G/ISC450G.
FieldMate contains the versions of DD files at the time when sold. To download the latest version
of DD files, visit our library by clicking the following link. You can find and down load the files you
need from “Software” in Documents & Downloads.
http://www.yokogawa.com/an/download/an-dl-fieldbus-001en.htm
*:
This address is subject to change without prior notice. If the above address cannot be accessed, consult your nearest sales office
or the agency from which you purchased the product.
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Before using FieldMate
Before using FieldMate, check the revision of Device Files.
• Compatibility among revisions of PH450G/SC450G/ISC450G, FieldMate and DD file
Device
Product
FieldMate
DD of Field Communicator
Device
version
Revision of
Device Files
DD file revision
in Device Files
Corresponding
device revision
DD file
revision
PH450G/
SC450G/
ISC450G
02
R3.05 or
later
2
2
2
You can check the device version by pressing the zoom
on the main menu of PH450G/
SC450G/ISC450G, as shown in the figure 1.
Logbook
HART ID xxxxxx
Software Revision 1.26
HART® Device Revision 02
Figure 1 Display of firmware revision
Oct. 03, 2017-00
No. TI 12A01A01-60EN
1st Edition : Oct. 2017(YK)
All Rights Reserved. Copyright © 2017, Yokogawa Electric Corporation