Mitsubishi Electric EMU4-CNT-MB, Руководство пользователя

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3.5 Connection with Superior Monitoring Systems via MODBUS RTU Communication
*1: The number of contact output/analog output to control equipement or devices varies depending on the control type or
the number of control units in the system.
For details, refer to the appropriate section for each control type.
・
Interlocking control
→
7.7
・
Compressor control
→
7.8
・
Schedule control
→
7.9
*2: To set up the extension units, the optional small type display unit is required.
For the precautions for system configuration using the extension units or small type display unit, refer to 3.1
Precautions for System Configuration .
*3: For details on MODBUS RTU communication with superior monitoring systems, refer to MODBUS I/F specifications.
PC
Circuit measurement
(Current, Voltage, etc.)
Analog input
Contact input
(Pulse, Contact)
Ethernet
Control Unit
Engineering Tool
(EMU4-KNET)
Equipment / Device *1
Small type display unit
(EMU4-D65) *2
Control unit (Parent terminal)
(MODBUS RTU Slave station)
System 1
・
・
・
<Settable control type>
・
Interlocking control
・
Schedule control
*The parent terminal only that does not combine with any
child terminal can be connected to the MODBUS RTU
Master station (programmable controller, etc.)
Circuit measurement
(Current, Voltage, etc.)
Analog input
Contact input
(Pulse, Contact)
Small type display unit
(EMU4-D65) *2
Control unit (Parent terminal)
(MODBUS RTU Slave station)
System 20
Superior monitoring system
(Programmable controller, etc.)
MODBUS RTU Master station
Other terminal devices
(MODBUS RTU Slave station)
MODBUS RTU Communication *3
∙
Collect control information
from the control unit
∙
Control the contacts of the
control unit
Control Unit Engineering Tool
can manage Max 20 systems
per project.
Equipment / Device *1
Max
31 units