MODBUS Address Switch

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According to MODBUS specification, individual slave device must be assigned unique (within entire bus) slave address in the range of 1 - 247. CoolEx slave address is configured with 4 DIP switches component. Below you can see it's layout.

 

 

The resulting slave address address can be determined as 0x50 + DIP switch value. Following table illustrates all possible combinations.

 

SW 4

SW 3

SW 2

SW 1

Address

Hex

Address

Decimal

0

0

0

0

0x50

80

0

0

0

1

0x51

81

0

0

1

0

0x52

82

0

0

1

1

0x53

83

0

1

0

0

0x54

84

0

1

0

1

0x55

85

0

1

1

0

0x56

86

0

1

1

1

0x57

87

1

0

0

0

0x58

88

1

0

0

1

0x59

89

1

0

1

0

0x5A

90

1

0

1

1

0x5B

91

1

1

0

0

0x5C

92

1

1

0

1

0x5D

93

1

1

1

0

0x5E

94

1

1

1

1

0x5F

95