Components and Architecture - Hardware Components
26 HC900 Process Controller Installation and User Guide Revision 19
06/14
For more information on I/O modules and associated terminal blocks, refer to the section in this manual on
Input/Output Installation and Wiring.
Personal Computer
A Personal Computer is required for creating the control and data acquisition strategy (configuration file)
that runs in the controller, using the Designer Software configuration software. The PC can also be used to
download/upload configuration files to/from the controller, and can be used to download program updates
to firmware in the Controller Module and/or Scanner Modules.
• A PC can be connected to the controller via the RS-232 port for legacy system.
• For the new system, a PC can be connected to the controller via the RS-485 TO USB cable connected to
RS485 Port , which can be connected to external Honeywell qualified RS485 to USB converter, and can
also be networked to the controller via the Ethernet 10/100Base-T Open Connectivity Network port.
Redundant controllers: PC communicates with Lead Controller only.
NOTE: For specific PC requirements and for specific software requirements, refer to the Designer Software
Users Manual.
RS-232 Modem Devices
The PC configuration tool connects from the RS-232 serial port of the Controller Module to a serial port on
the PC
For new system, the PC Configuration tool connects to the RS-485 port on the Controller Module using an
external Honeywell Qualified RS-485 to USB converter..
The PC can be located remote from the Controller by using Modems and telephone links. Modems and
suitable cabling are available from third-party vendors.
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