Honeywell HC900 User Manual

Components and Architecture - Hardware Components
24 HC900 Process Controller Installation and User Guide Revision 19
06/14
Redundancy Switch Module (C75 only)
The Redundancy Switch Module (RSM) is shown in Figure 13.
It sits between C75 controllers on rack. Left Controller is designated
“CPU-A”; right Controller is “CPU-B.” Features include:
1. Lead/Reserve controller status indicators.
2. Keyed switch for manual changes to controller modes or to facilitate a Manual
Fail Over.
Figure 13 – Redundancy Switch Module
Scanner 1 Module (C50 and C50S/C70 and C70S only)
The Scanner 1 Module is shown in
Figure 14.
It sits in the I/O rack and provides the link between the
controller and remote I/O. Features at the front of the module
include:
1. LED status indicator for scanner functions.
2. One private Ethernet 10Base-T Port; connects to the I/O
expansion port on Controller Module (or to a port on a Switch
that connects to the Controller Module)
3. LED status/diagnostic indicators for communications
functions.
Figure 14 – Scanner 1 Module

Honeywell HC900 Specifications

General

Series	HC900
Redundancy	Optional
Programming Language	Function Block Diagram, Ladder Logic, Structured Text
Inputs	Analog, Digital
Outputs	Analog, Digital, Relay
Display	Optional
Control	PID, Advanced Control
Power Supply	24V DC or 100-240V AC
Storage Temperature	-40°C to 85°C
Humidity	5% to 95% non-condensing
Communication Protocols	Modbus, Ethernet