Honeywell 900U02-0100 - Figure 13 - Controller Module

Revision 10 ControlEdge HC900 Process & Safety Controller User and Installation Manual 27
May 2019
Controller Module
C30 and C30S, C50 and C50S, C70 and C70S, C75 and C75S Controllers share the same features, with
exceptions noted.
1
CPU model number (C30 and C30S, C50 and C50S , C70 and C70S, C75 and C75S).
2
Lithium battery (battery tray), which is readily accessible for field replacement. Battery
tray on Controllers C30/C30S, C50/C50S, C70/C70S, and C75/C75S.
3
Serial Interface Ports
For legacy systems, two serial ports, S1 and S2, each configurable as RS-232 or RS-485
provides interfaces to a PC, external modem, Modbus devices or Operator Interfaces.
For new systems, two galvanically isolated RS-485 serial ports, S1 and S2 provide
interfaces to PC using RS-485 to USB cable. External modem or Modbus devices may be
interfaced using RS-485 to RS-232 converter. RS-485 interfaces to PC, Control Stations or
Modbus devices/host.
4
Ethernet LED status
indicators for
communications functions
Figure 13 – Controller Module
5
Connection to I/O port of
Scanner Module.
C50/C50S/C70/C70S,
C75/C75S only
6
Second Ethernet (E2) Host
Connection to PC
applications or peer
ControlEdge HC900
controllers.
C70/C70S/C75/C75S only
7
First Ethernet (E1) Host
Connection to PC
applications or peer
ControlEdge HC900
controllers
8
LED status/diagnostic
indicator for serial port S2
(left)
9
LED status/diagnostic
indicator for serial port S1
(right)
10
LED status/diagnostic
indicator for controller
module
11
Mode switch (Pgm,
Run/Pgm, Run). Not present
on C75/C75S; see RSM
Redundant controller rack contains two C75s or C75Ss. Left CPU is designated CPU-A, right CPU is
CPU-B; either CPU can be Lead.