Preparation and Attention of Device Information Import
Preparation and design example
An office building with five floors is provided with 20 air conditioner systems (4 systems each floor).
Analysis:
1. One air conditioner system connects with one protocol converter
2. One serial–Ethernet converter port can be connected to a Maximum of 20 protocol converters; thus, two ports are
required: one connected with 15 protocol converters and the other connected with 5 protocol converters.
Note: if not so many protocol converters like in this example are available, to make the wiring more convenient, these
20 gateways can be divided into 15 + 5 or 5 + 5 + 5 + 5; however, one port cannot be connected with more than 20
protocol converters.
The following information should be known before design:
1. What is the central address of this indoor unit?
2. What is the room number (installation location) of this indoor unit?
3. On which floor is this indoor unit located?
4. What is the user name of the room for this indoor unit?
5. What is the address of the protocol converter connected with the outdoor system to which this indoor unit belongs?
6. What is the port (RS485 bus port) number for the gateway connected with the outdoor system to which this indoor unit
belongs?
The information obtained for the above items is tabulated as follows:
Building name: Office Building
Room name
Repair office for signal
West training room
East training room
Material & tool room for signal
Signal on-car test chamber
Director office
Deputy director office
East shop manager Office
West shop manager Office
Control room
Maintenance room
Maintenance team Room
Motorcade
Power distribution Room
Power distribution Room
Warehouse
File room
Conference room1
Conference room2
Indoor unit information for each room
Protocol
Floor
converter
address
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
28
Central
Group
address
address
of indoor
of wired
unit
controller
1
0
1
1
1
2
2
0
1
2
2
2
2
3
4
2
2
5
0
3
3
1
3
2
3
3
3
4
5
3
3
6
3
7
8
3
3
9
Indoor
Room
unit type
no.
0
100
Cassette
0
101
Cassette
0
102
Cassette
0
103
Cassette
104
Cassette
0
0
104
Cassette
0
105
Cassette
106
Cassette
0
1
107
Cassette
108
Cassette
0
0
109
Cassette
0
110
Cassette
111
Cassette
0
0
112
Cassette
113
Cassette
0
0
114
Cassette
0
115
Cassette
116
Cassette
0
1
117
Cassette