6.3
Identifying the units
Each unit is identified at the factory with a factory setting, which is the last two
digits of the serial number of the unit. The factory setting is valid when the
Modbus ID DIP switches on the VariPro control card are set to 00000000. When
using the VariPro controller, changing the unit’s address is not normally
required.
The factory setting of the unit address is the last two digits of the serial number:
•
01 = address 1
•
02 = address 2
•
...
•
00 = address 100
The label on the unit’s electrical box cover shows the unit ID set at the factory.
1. Identification sticker
2. DIP switch
Note! Two units connected to the same controller must have different addresses. If
two units have the same address, set the address of one of the units manually.
The units can be identified manually by adjusting the DIP switch on the VariPro
control card.
The address is set according to the binary system from left to right: 1, 2, 4, 8, 16,
32, 64, 128. For example, if you want to set the unit address to 9, push up DIP
switches 1 and 4 (1+8=9).
Note! The unit must be powered off and on again for the address change to take
effect.
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VariPro Room controller – Installation and Operation Manual
