Components and Architecture - Overview
Revision 18 HC900 Process Controller Installation and User Guide 13
02/14
Components and Architecture
Overview
This section provides a description of each of the major components that can be included in an HC900
Controller physical configuration, and indicates some of the methods by which they can be combined.
Components
The Honeywell HC900 Process Controller includes a set of hardware modules that can be combined and
configured as required for a wide range of small to medium process control applications.
Some of the modules are required in all configurations. Others are optional; they are selected as
appropriate to provide optional functions and/or to "size" the system, either in initial planning, or in
modifying and/or expanding the system to meet changing requirements.
An HC900 Controller configuration with multiple controllers is illustrated in Figure 4.
This illustration includes key-numbers that identify components that are described in Table 2
CAUTION
Communications lockout is possible in high network traffic conditions.
Extraneous traffic is possible when sharing bandwidth with other devices. We recommend putting
the controller on a private network segment. Failure to do so could, in high traffic cases,
result in communications lockout requiring the controller to be power-cycled.
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