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Macurco MRS-485 Modbus RS-485 Adapter
4
Configuration
4.1
Dip Switches and Addressing
The DIP switches are used to set the Modbus address and are also used to change the MRS-485 settings. Valid
Modbus addresses are between 1 and 247 where switch 1 is the least significant bit (LSB) and switch 8 is the
most significant bit (MSB). Address 254 is used to place the MRS-485 in programming mode and the rest of
addresses (248 to 253, 255, 0) are invalid Modbus addresses.
Note: See Table 4-1 of this manual for a full list of dip switch settings.
1 = 1
2 = 2
3 = 1, 2
4 = 3
5 = 1, 3
6 = 2, 3
7 = 1, 2, 3
8 = 4
9 = 1, 4
REV – 1.0
Table 3-1 Power Wire lengths
Figure 4-1 Dip Switches (displayed to "50")
26 = 2, 4, 5
27 = 1, 2, 4, 5
28 = 3, 4, 5
29 = 1, 3, 4, 5
30 = 2, 3, 4, 5
31 = 1, 2, 3, 4, 5
32 = 6
33 = 1, 6
34 = 2, 6
[34-2900-0019-8]
51 = 1, 2, 5, 6
52 = 3, 5, 6
53 = 1, 3, 5, 6
54 = 2, 3, 5, 6
55 = 1, 2, 3, 5, 6
56 = 4, 5, 6
57 = 1, 4, 5, 6
58 = 2, 4, 5, 6
59 = 1, 2, 4, 5, 6
76 = 3, 4, 7
77 = 1, 3, 4, 7
78 = 2, 3, 4, 7
79 = 1, 3, 4, 7
80 = 5, 7
81 = 1, 5, 7
82 = 2, 5, 7
83 = 1, 2, 5, 7
84 = 3, 5, 7
12 |
P a g e
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