Honeywell 900U02-0100 - Table 2 - Descriptions of Major Redundancy Components

20 ControlEdge HC900 Process & Safety Controller User and Installation Manual Revision 10
May 2019
Table 2 – Descriptions of Major Redundancy Components
Key No.
Component
Name
Description
Source
1
Controller
(Local) Rack
Includes: Rack, 2 Power Supplies, 2 C75
Controllers, 1 Redundancy Switch Module (RSM)
Honeywell
2
I/O Expansion
Rack
Includes: 1 Scanner 2 module, 1 Power Supply, and
up to 4, 8, or 12 I/O modules. Optional second
Power Supply and Power Status Module (PSM) on
8- and 12-slot I/O racks.
Honeywell
3
Control Station
900 Control Station operator interface
communicates via Ethernet or RS-485 serial link
Honeywell
4
PC
Configuration
Tool (Serial
Interface
option)
 For legacy system- 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 from the galvanically isolated RS-485
port of the Controller Module using an external
Honeywell qualified RS-485 to USB converter.
PC is from third-party
supplier. Configuration
software is from
Honeywell. RS-485 to
USB converter is a third
party device available
from Honeywell.
5
HMI (Human-
Machine
Interface)
(Optional) PC link to Ethernet network, which may
include other HMIs, other ControlEdge HC900
Controllers, and other networks (including Internet).
Typically includes HMI operating software.
May also include Designer Software (configuration
tool and utility software).
PC is from third-party
supplier.
HMI software is
available from
Honeywell (Experion
HS or SpecView32) or
from third-party
supplier.
6
Qualifies un-
managed
Ethernet
100Base-T
Switch
Required if using 2 or more I/O Expansion racks.
Provides connection of the I/O Ethernet 100Base-T
port on a Controller Module to the Scanner
modules. Switch not required for connection to a
single I/O rack.
Qualified third party
devices available from
Honeywell
6a
Ethernet
10/100Base-T
Switch or
Router/Firewall
Enables inter-connection of several 10/100Base-T
Ethernet devices in an Ethernet network. Devices
include other ControlEdge HC900 Controllers,
HMIs, and can also include routers, servers, and
other devices in wider networks. Use of a properly
configured firewall provides a more robust network
limiting exposure to uncontrolled network traffic.
Honeywell or third-party
suppliers.
7
Ethernet CAT5
shielded cable
Connects I/O expansion racks to controllers and/or
to 10/100baseT Ethernet switches. It also connects
to 900 Control Stations and PC SCADA software
applications.
Third-party suppliers or
Honeywell
9
RS-232
For legacy system, Null modem cable, up to 50’
(15.24m) (PC modem cable if used with Modems.)
For new systems, RS-485 to USB converter,
connects galvanically isolated RS-485 port to USB
port.
Third-party suppliers or
Honeywell