Specifications

INTELLIGENT
CONTROL SERIES
26
Network Control NIM
• Maximum point to point communication bus up to 1000m.
• A single master unit can control up to 15 slave units in each group.
• Support up to 256 air conditioning units on a single
communication bus.
• Each slave unit will sense their individual local temperature.
For NIM PC only
NIM PC
GATE
WAY
MAIN
BOARD
MAIN
BOARD
CONTROL
PANEL
CONTROL
PANEL
NIM
NIM
MASTER 0
GROUP 0
Slave 1
MAIN
BOARD
MAIN
BOARD
CONTROL
PANEL
CONTROL
PANEL
NIM
NIM
MASTER 1
Slave 1 .......Slave 15
MAIN
BOARD
CONTROL
PANEL
NIM
Slave 2 .......Slave 15
GROUP 1
MAIN
BOARD
MAIN
BOARD
CONTROL
PANEL
CONTROL
PANEL
NIM
NIM
MASTER N
Slave 1 .......Slave 15
GROUP N
NOTE:
• Group address range from 0 to 255
(00000000-11111111)
• Unit address range from 0 to 15
(0000-1111)
* NIM PC Gateway does not
need to be connected to
any particular air-conditioner
unit. It just needs to be
connected to the bus.
Typical Bus Structure for NIM Network
Main board controllers and display control panel
NIM must be used in conjunction with:
• Main board Universal U1.4, W1V3 and above
Supported Configuration
Communication Bus
A 2-way twisted pair cable is used as the communication bus.
Recommended cable for communication bus is a pair of screened & shielded, twisted single core wire with
core diameter of 0.5mm to 1.0mm.
Cable Length
Connection:
The communication bus must be connected serially to the adjacent NIM. (Daisy chair connection)
The same polarity has to be connected between the NIMs (A to A, B to B).
• Wired controller, Netware 3, SLM 3 or
Wireless Remote Control
Netware 3
SLM 3
IR Remote
None of the interface above
Master Slave
First NIM to the furthest
connected NIM
NIM to Main Board
NIM to Wired Controller
NIM to NIM PC Gateway
Recommended Maximum Cable Length (m)
Connection
1000
10
10
10
NIM PC For Global Control Hub
With NIM PC, a personal computer will act as a centralised unit for both controlling and
monitoring of all air conditioning units in the NIM network.
For controlling, settings can be set from the PC and send out to the system for
execution. While for monitoring, there is a graphical user interface for displaying the
status of each unit.
The NIM PC provides a Global Control Hub that offers control for better system
management:
• Easier to operate full graphical user interface
• Control online units globally, as a group,
or as individual units
• Configure a super master unit
• Support up to 42 on/off timers per week
• Real time monitoring of online units
• Error diagnostic and alerting features for all units
• Data logging and printing ability
• Database to store unit location
• Login protected by password
GUI-Main Menu
Fig: NIM
NIM PC - Gate Way
Network Interface Module (NIM) is a networking system which enables communication
among Acson air conditioners.
With the Network Interface Module (NIM), all your air conditioning systems can be
controlled with just a single controller giving you benefits:
BENEFITS
• More convenience. No more individually controlling air conditioning units
• Quicker and easier zone control from the master control unit
• Better control of air conditioning systems operating conditions
NIM utilizes master-slave type system whereby the master node will issue commands to
each of the slave nodes.
Every master unit will have a group address so that every slave can only response to their respective master.
Each slave unit must have a unique address so that it can be addressed independently of other nodes.
The master unit will be operating in conjunction with a control panel. Any settings done via the control panel
connected to the master will overwrite the settings of its slave units.
Slave unit can be operated with or without control panel. If a slave unit is operating with a control panel, its
settings can be changed without following its master.
BASIC FEATURE
• DIP switch setting for Group & Unit address.
• Master or slave system configuration.
• Automatic detection of control panel existence.
• Error type and unit ID indication through
• Display control panel.
THE NIM SYSTEM CONSISTS OF
• Main Board controller • Display control panel • NIM controller • Communications bus