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1-4 • E2 RX/BX/CX I&O Manual 026-1614 Rev 4 5-JAN-2013
1.4 Networking Overview
1.4.1 E2 I/O Network
Most of the general purpose input and output commu-
nications devices required by the E2 to control refrigera-
tion systems are connected to the E2 via the I/O
Network.
The I/O Network is a simple RS485 three-wire connection
that allows data interchange between input boards (which
read sensor values and digital closures), output boards
(which carry out commands from E2’s control applica-
tions), and the E2 itself.
The I/O Network is the same thing as the COM A and
COM D Net
works found on Emerson Retail Solutions’
previous generation of controllers, REFLECS. This allows
current owners of Emerson Retail Solutions’ Refrigeration
Monitor and Control (RMC) or Refrigeration Monitor and
Case Control (RMCC) controllers to easily retrofit with an
E2 RX without need for re-wiring.
Figure 1-2
- E2 RX/BX I/O Network Diagram
RXE2
E2
E2 RX & BX
RS485 I/O NETWORKS
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
CS-100
CS-100
CC-100
CC-100
CC-100
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
Figure 1-2 shows the peripherals that make up the I/O
Network:
• Mult
iFlex - The MultiFlex line of control system
boards provide a wide variety of input, output, and
smart control solutions, all of which are based on a
single universal hardware platform.
• 8R
OSMT - Relay output board - activates and deac-
tivates up to eight devices.
ESR8 ESR Control 0 99 99
Flexible Combiner 64 128 128
Heat/Cool Control 4 6 8
Holiday Schedule 8 16 32
HVAC Zone 4 6 12
Infrared Leak Detec-
tion
1 16 16
Irrigation 2 2 2
Lighting Control 6 24 48
K5 Ref Scroll 0 0 31
Logging Group 8 32 32
Loop/Sequence Control 8 16 28
MultiFlex ESR 0 31 31
MRLDS 24 24 24
Performance Alert 0 0 63
Power Monitoring 2 8 16
Pulse Accumulator 4 8 16
RCB/RCB-P Controller 0 32 32
RMS Asset 99 99 99
Standard Circuit 6 12 32
Suction Group 0 0 4
TD Condenser Fan
Control
8 16 28
TD3 Controller 0 99 99
Time Schedule 8 16 32
Capabilities
CX-
100
CX-
300
CX-
400
Table 1-3 - CX-100, CX-300, and CX-400 Comparison