Link to Operator Interface
For legacy and new systems, RS-485 port used for 2-wire link to the Operator Interface (up to 2000
feet or 601meters). Port configurable as Modbus RTU master or slave.
Ethernet 10/100Base-T connection to: up to 5 PC hosts via Modbus/TCP protocol, Peer-to Peer
communication with other ControlEdge HC900 Controllers, and the Internet. C70 has 2 Ethernet ports
for connection to up to 10 PC hosts. It also supports Modbus/TCP Initiator function over both ports.
Private Ethernet 100Base-T connection to I/O expansion racks (except C30 and C30S CPU)
Redundancy
Supervisory Network – Ethernet 10/100 baseT to PC Applications (HC Designer & HC Utilities),
communicates to peer ControlEdge HC900 Controllers over Ethernet. C75 has two Ethernet ports. Lead
C75 CPU supports up to 10 concurrent sockets. It also supports Modbus/TCP Initiator function over both
ports.
I/O Network – Direct connection to each C75 CPU.
Device Network
RS-232 or RS-485 Serial Interface; Modbus RTU. Two serial ports available for legacy systems.
Each port can be set as Modbus Master or Slave. Host Serial Interface for Honeywell or third party
operator interface.
For new systems two serial R2-485 ports are available. Each port can be set as Modbus Master or
Slave. Host Serial Interface for Honeywell or third party operator interface.
Racks
4 I/O Slot Rack 900R04 – 0001
8 I/O Slot Rack 900R08 – 0101
12 I/O Slot Rack 900R12 - 0101
8 Slot Rack -Red. Power 900R08R - 0101
12 Slot Rack - Red. Power 900R12R - 0101
Redundant CPU Rack 900RR0 - 0001
Controller C50 CPU Config.SW & Docs 900C51 – 00XX-00
Controller C50 CPU 900C52 – 00XX-00
Controller C30 CPU Config. SW & Docs 900C31 – 00XX-00
Controller C30 CPU 900C32 – 00XX-00
Controller C70 CPU Config.SW & Docs 900C71-00XX-00
Controller C70 CPU 900C72-00XX-00
Controller C70R CPU Config.SW & Docs 900C71R-0000-XX
Controller C70R CPU 900C72R-0000-XX
Redundancy switch module 900RSM - 0001
I/O Scanner - 2 Port (1 per I/O rack) 900C73R-0000-XX
I/O Scanner (for remote rack) 900C53 – 00XX-00
Redundant Power Status Module 900PSM - 0001
