Emerson operation manual E2 Convenience Store Controller

Capabilities	BX-300	BX-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	16	28
Control
Time Schedule	64	64

Table 1-2- BX-300 vs. BX-400 Comparison

1.3The 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 1-3shows the differences between capabilities for the CX-300 and CX-400.

Capabilities	CX-	CX-	CX-
	100	300	400
Advanced Rooftop	0	32	32
Control
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

The E2 Convenience Store Controller Introduction • 1-3