Emerson E2 - Manual (Page 19)

The E2 Convenience Store Controller Introduction • 1 - 3
1.3 The E2 Convenience
Store Controller
The CX controls HVAC, lighting, and refrigeration
systems for convenience store and small-box retail facili-
ties. The CX’s primary function is to provide energy-effi-
cient control of rooftop units as well as refrigeration and
defrost control of display cases and walk-in boxes. In
addition, the CX provides extensive sensor control, log-
ging, and graphing features that allow the user to view
accurate real-time information about system conditions.
The CX is equipped with many power monitoring and
demand control features that give you the information you
need to keep your site’s energy consumption low.
The E2 CX is available in three models: the CX-300,
CX-400, and CX-100. The only significant difference
between the E2 CX-300 and the E2 CX-400 is the amount
of C-Store equipment that may be operated by a single
controller. The CX-100 is a low-cost alternative to the CX-
300 with fewer capabilities and a monochrome display.
Table 1-3 shows the differences between capabilities for
the CX-300 and CX-400.
Lighting Control 24 48
Logging Group 32 32
Loop/Sequence Control 16 28
MRLDS 24 24
Power Monitoring 32 64
Pulse Accumulator 32 64
RMS Asset 99 99
RCB Controller 64 64
TD Condenser Fan
Control 16 28
Time Schedule 64 64
Capabilities BX-300 BX-400
Table 1-2 - BX-300 vs. BX-400 Comparison
Capabilities
CX-
100
CX-
300
CX-
400
Advanced Rooftop
Control 0 32 32
AHU 4 6 8
Analog Combiner 64 128 128
Analog Sensor Control 12 24 48
Anti-Sweat 4 8 16
Case Control Circuit 0 12 24
CC100 Case Suction 0 99 99
CC100 Liquid Control 0 99 99
CCB 0 99 99
Condenser 0 0 1
Control Link ACC 8 16 16
Control Link Case Disp 6 99 99
Control Link RSC 10 99 99
CS100 Ckt Suction 0 99 99
CT Drive 0 16 16
Demand Control 1 1 1
Digital Combiner 64 128 128
Digital Sensor Control 12 24 48
Discus 0 0 63
Table 1-3 - CX-100, CX-300, and CX-400 Comparison