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Macurco MRS-485 Modbus RS-485 Adapter
10 = 2, 4
11 = 1, 2, 4
12 = 3, 4
13 = 1, 3, 4
14 = 2, 3, 4
15 = 1, 2, 3, 4
16 = 5
17 = 1, 5
18 = 2, 5
19 = 1, 2, 5
20 = 3, 5
21 = 1, 3, 5
22 = 2, 3, 5
23 = 1, 2, 3, 5
24 = 4, 5
25 = 1, 4, 5
4.2
Changing MRS-485 Settings
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.
4.3
Programming Mode
When the address is set to 254 the MRS-485 enters programming mode and the LED pattern: Alternating
RED/GREEN every 200 milliseconds, indicates that the MRS-485 is ready and waiting for the user to enter new
settings using the 8 switches. Using the 8 switches the user can change the communication settings like baud
rate and parity as well as the registration behavior.
When looking at the switches with the "Address" marking on top, the switches are defined from left to right as:
REV – 1.0
35 = 1, 2, 6
36 = 3, 6
37 = 1, 3, 6
38 = 2, 3, 6
39 = 1, 2, 3, 6
40 = 4, 6
41 = 1, 4, 6
42 = 2, 4, 6
43 = 1, 2, 4, 6
44 = 3, 4, 6,
45 = 1, 3, 4, 6
46 = 2, 3, 4, 6
47 = 1, 2, 3, 4, 6
48 = 5, 6
49 = 1, 5, 6
50 = 2, 5, 6
Table 4-1 Dip Switch Settings
[34-2900-0019-8]
60 = 3, 4, 5, 6
61 = 1, 3, 4, 5, 6
62 = 2, 3, 4, 5, 6
63 = 1, 2, 3, 4, 5, 6
64 = 7
65 = 1, 7
66 = 2, 7
67 = 1, 2, 7
68 = 3, 7
69 = 1, 3, 7
70 = 2, 3, 7
71 = 1, 2, 3, 7
72 = 4, 7
73 = 1, 4, 7
74 = 2, 4, 7
75 = 1, 2, 4, 7
85 = 1, 3, 5, 7
86 = 2, 3, 5, 7
87 = 1, 2, 3, 5, 7
88 = 4, 5, 7
89 = 1, 4, 5, 7
90 = 2, 4, 5, 7
91 = 1, 2, 4, 5, 7
92 = 3, 4, 5, 7
93 = 1, 3, 4, 5, 7
94 = 2, 3, 4, 5, 7
95 = 1, 2, 3, 4, 5, 7
96 = 6, 7
97 = 1, 6, 7
98 = 2, 6, 7
99 = 1, 2, 6, 7
13 |
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