Emerson E2 Manuel D’Utilisation
MODBUS
The RS485 Network and Hardware Setup
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6.3.2
Copeland Discus with
CoreSense Diagnostics (ISD)
E2 controllers version 2.21F01 and above may com-
municate with Copeland ISD compressors using the ECT
MODBUS network. E2 controllers version 2.30F01 and
above may use any of the RS485 I/O ports (COM2,
COM4, or COM6) as a Copeland ISD communication
port. Version 2.21F01 E2 units may only connect Cope-
land ISD compressors to an RS485 Expansion Card.
MODBUS network. E2 controllers version 2.30F01 and
above may use any of the RS485 I/O ports (COM2,
COM4, or COM6) as a Copeland ISD communication
port. Version 2.21F01 E2 units may only connect Cope-
land ISD compressors to an RS485 Expansion Card.
The installation and operation manual explaining the
Copeland ISD interface is maintained by Copeland. Con-
tact your Copeland representative for a copy of this man-
ual.
tact your Copeland representative for a copy of this man-
ual.
6.3.3
XR35CX, XR75CX, and
XEV22 Case Controllers
E2 controllers version 2.84 or greater communicate
with the XR and XEV controller. The XR and XEV con-
trol compressor regulation, defrost, light, and evaporator
fans in refrigeration systems on normal, low, or medium
temperatures, control a wide variety of stepper electronic
expansion valves and anti-sweat heaters (if present), and
measure and regulate the superheat of the refrigerant in the
system.
trol compressor regulation, defrost, light, and evaporator
fans in refrigeration systems on normal, low, or medium
temperatures, control a wide variety of stepper electronic
expansion valves and anti-sweat heaters (if present), and
measure and regulate the superheat of the refrigerant in the
system.
If the case controller is configured with a Real Time
Clock (RTC), it can be programmed with up to 6 daily
defrosts and an energy saving function. Without the RTC,
the E2 can coordinate defrost cycles and the energy-saving
function.
defrosts and an energy saving function. Without the RTC,
the E2 can coordinate defrost cycles and the energy-saving
function.
Several parameters of the Emerson controllers (such as
inputs, outputs, setpoints, and alarms) can be configured
directly in E2 and sent to the appropriate Emerson control-
ler, depending on the controller model.
directly in E2 and sent to the appropriate Emerson control-
ler, depending on the controller model.
6.3.3.1
XR75CX-Case Display
E2 controllers version 4.02 or greater communicate
with the XR75CX-Case Display controller. The XR75CX-
Case Display is a microprocessor-based controller, suit-
able for applications on medium or low temperature venti-
lated refrigeration units. It has up to four (4) analog inputs:
discharge air temperature, product temperature, defrost
temperature and coil out temperature, four (4) relay out-
puts, and up to two (2) digital inputs. For more informa-
tion on the XR75CX-Case Display, refer to the XR75CX-
Case Display manual P/N 026-1217.
Case Display is a microprocessor-based controller, suit-
able for applications on medium or low temperature venti-
lated refrigeration units. It has up to four (4) analog inputs:
discharge air temperature, product temperature, defrost
temperature and coil out temperature, four (4) relay out-
puts, and up to two (2) digital inputs. For more informa-
tion on the XR75CX-Case Display, refer to the XR75CX-
Case Display manual P/N 026-1217.
6.3.4
iPro DAC
Figure 6-4
- iPro DAC
The iPro DAC is a packaged HVAC control board for
use either as a stand-alone controller or in zone control
applications using a Emerson Retail Solutions E2 BX
building control system. The iPro DAC is capable of con-
trolling heat and cool stages, fans, humidification and
dehumidification devices and economizers using on-board
I/O and control algorithms, as well as monitor and interact
with other building control systems and peripherals (such
as smoke alarms and CO2 sensors).
applications using a Emerson Retail Solutions E2 BX
building control system. The iPro DAC is capable of con-
trolling heat and cool stages, fans, humidification and
dehumidification devices and economizers using on-board
I/O and control algorithms, as well as monitor and interact
with other building control systems and peripherals (such
as smoke alarms and CO2 sensors).
6.3.5
Energy Meter
Figure 6-5
- Energy Meter
6.3.5.1
Overview
The Energy Meter provides a solution for measuring
energy data with a single device. Inputs include Control
Power, CT, and 3-phase voltage. The Energy Meter sup-
ports multiple output options, including solid state relay
contacts, Modbus (with or without data logging), and
pulse. The LCD screen on the faceplate allows instant out-
put viewing.
Power, CT, and 3-phase voltage. The Energy Meter sup-
ports multiple output options, including solid state relay
contacts, Modbus (with or without data logging), and
pulse. The LCD screen on the faceplate allows instant out-
put viewing.