Honeywell HC900 - Notices and Trademarks; Warranty;Remedy

Revision 13 HC900 Process Controller Communications User Guide iii
April 2017
About This Document
Abstract
This document provides information specific to the communications interface for Honeywell’s HC900 Controller.
The protocol supported for connection to the controller’s Ethernet network port is Modbus/TCP (Modbus RTU
protocol in a TCP/IP wrapper). . The document includes a summary of all HC900 data available (primarily floating
point) for Modbus RTU access read and write including methods for access.
Support & Contact Information
For Europe, Asia Pacific, North and South America contact details, refer to the back page of this manual
or the appropriate Honeywell Solution Support web site:
Honeywell Organization
WWW Address (URL)
Corporate
http://www.honeywell.com
Honeywell Process Solutions
http://www.hpsweb.honewell.com/ps
HPS Technical tips
http://hpsweb.honeywell.com/Cultures/en-
US/Products/Instrumentation/hybrid/hc900/TechnicalTips
/documents.htm
Telephone and Email Contacts
Area
Organization
Phone Number
United States and
Canada
Honeywell Inc.
1-800-343-0228 Customer Service
1-800-423-9883 Global Technical Support
Global Email Support
Honeywell Process Solutions
Email: (Sales)
FP-Sales-Apps@Honeywell.com
or (TAC)
hfs-tac-support@honeywell.com