Standard Screw Compressor - RWB Series
C-4
M&M
R
EFRIGERATION
I
NC
.
Message Addressing
Each compressor is required to have a unique address referred to as the unit number.
The unit number is initially set using dip switch SW1 on the main microprocessor board.
However, the actual unit number can be changed through software by setting the Modbus
or DF1 unit number on the appropriate setup screen on the controller. The following table
shows the dip switch settings for up to 31 individual screw compressors.
UNIT
NUM
DIP SWITCH
UNIT
NUM
DIP SWITCH
8 7654321 87654321
1 OFF OFF OFF OFF OFF OFF OFF ON 17 OFF OFF OFF ON OFF OFF OFF ON
2 OFF OFF OFF OFF OFF OFF ON OFF 18 OFF OFF OFF ON OFF OFF ON OFF
3 OFF OFF OFF OFF OFF OFF ON ON 19 OFF OFF OFF ON OFF OFF ON ON
4 OFF OFF OFF OFF OFF ON OFF OFF 20 OFF OFF OFF ON OFF ON OFF OFF
5 OFF OFF OFF OFF OFF ON OFF ON 21 OFF OFF OFF ON OFF ON OFF ON
6 OFF OFF OFF OFF OFF ON ON OFF 22 OFF OFF OFF ON OFF ON ON OFF
7 OFF OFF OFF OFF OFF ON ON ON 23 OFF OFF OFF ON OFF ON ON ON
8 OFF OFF OFF OFF ON OFF OFF OFF 24 OFF OFF OFF ON ON OFF OFF OFF
9 OFF OFF OFF OFF ON OFF OFF ON 25 OFF OFF OFF ON ON OFF OFF ON
10 OFF OFF OFF OFF ON OFF ON OFF 26 OFF OFF OFF ON ON OFF ON OFF
11 OFF OFF OFF OFF ON OFF ON ON 27 OFF OFF OFF ON ON OFF ON ON
12 OFF OFF OFF OFF ON ON OFF OFF 28 OFF OFF OFF ON ON ON OFF OFF
13 OFF OFF OFF OFF ON ON OFF ON 29 OFF OFF OFF ON ON ON OFF ON
14 OFF OFF OFF OFF ON ON ON OFF 30 OFF OFF OFF ON ON ON ON OFF
15 OFF OFF OFF OFF ON ON ON ON 31 OFF OFF OFF ON ON ON ON ON
16 OFF OFF OFF ON OFFOFFOFFOFF
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