Feature Summary - Honeywell HC900 Installation And User Manual

The HC900 Controller design enables users and OEMs who are adept in system integration to assemble a
system that fits a broad range of requirements. Any configuration can be readily modified or expanded as
requirements dictate. In initial configuration and in subsequent modifications, the HC900 Controller
affords an optimum balance of performance and economy.
Configurations such as those shown in Figure 1 and in Figure 2, as well as many variations, can be
assembled from modular components. Many of the components are available from Honeywell, and some
are available from third-party suppliers. These modular components are available in any quantity and mix
that make the most sense for a given application.
As indicated in Figure 2, the HC900 Controller includes provisions for communication via Ethernet with
host systems such as the Honeywell PlantScape HMI and other HMI software that supports Ethernet
Modbus/TCP protocol. Also, the communication structure of the HC900 Controller enables remote
placement of input/output components, allowing significant economies in cabling and wiring.

Feature Summary

Hardware
Modular rack structure; components are ordered individually as needed
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CPU embodies Ethernet connectivity
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Easy to assemble, modify, and expand
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Local(C30,C50) and Remote input/output racks(C50 only), private Ethernet-linked in sub network
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Parallel processing - a CPU in each I/O module performs signal processing, to preserve update rates
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Communications
RS-232 Link to PC configuration tool (up to 50 feet or 12.7 meters) or modem. Port configurable as
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Modbus RTU/TCP master or slave
RS-485 2-wire link to the Operator Interface (up to 2000 feet or 601meters). Port configurable as
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Modbus RTU/TCP master or slave
Ethernet 10BaseT connection to: up to 5 PC hosts via Modbus/TCP protocol, Peer-to Peer
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communication with other HC900 Controllers, and the Internet
Private Ethernet 10BaseT connection to I/O expansion racks (C50 CPU only)
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Revision 5
9/03
HC900 Hybrid Controller Installation and User Guide
Introduction - Feature Summary
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