The E2 Echelon Lonworks Network; Interconnection With Other E2S - Emerson E2 Installation And Operation Manual

1.4.2 The E2 Echelon Lonworks
Network
The E2 is also compatible with a network platform
called Lonworks. This is most commonly referred to as
"the Echelon Network," after the company who invented
the platform, the Echelon Corporation.
In general, peripherals with control functions — such
as case controllers, rooftop HVAC controllers, and other
E2 RX and BX units — are interconnected on the Echelon
Network. These controllers do most of their own computa-
tion and system control, but they communicate with other
E2s to provide logging, alarm control, and other functions.
In addition to these, Emerson Retail Solutions also offers
Echelon-compatible input and output boards similar to
those available for the RS485 Network.
E2 RX
CS-100
MultiFlex
I/O
CS-100
CC-100
MultiFlex
I/O
CC-100
CC-100
MultiFlex
I/O
MultiFlex
I/O
E2 RX & BX
ECHELON NETWORKS
Figure 1-3
- E2 RX Echelon Network Diagram
Figure 1-3 shows the E2 RX peripherals that commu-
nicate across the Echelon Network:
• CC-100 - Case control board - controls all lights,
fans, defrost, and refrigeration for a single case. The
CC-100 controls pulse or stepper valves to provide
precise evaporator control, resulting in better tem-
perature maintenance and energy efficiency.
• ESR8 - Evaporator stepper regulator - the analog
outputs on this board allow the E2 to control circuit
temperature in up to eight circuits using suction-
Networking Overview
1.4.3
E2s
system is present, or where E2s are controlling both refrig-
eration and building HVAC systems in the same site, the
E2
E2s share information with each other across either the
Echelon Network or via Ethernet.
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
MultiFlex
I/O
Figure 1-4
side mounted electronic evaporator pressure regula-
tors (EEPRs).
• TD3 - Temperature display - has three inputs that
monitor case temperature, product temperature and
defrost status.
• Third Party Echelon Devices - Echelon
®
MARK devices communicate with E2 through its
"Open Echelon" networking feature, and require a
license key and a description file that is loaded into
the E2 that enables communication.
Interconnection With Other
In large installations where more than one refrigeration
Echelon Box-To-Box
ECHELON CABLE (daisy chain)
Ethernet Box-To-Box
Switch
- E2 RX/BX Network
®
LON-
CAT5 CABLE
• -
Introduction 1 5