Modbus Address Table - ICP DAS USA RMV-514 User Manual

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6.2 Modbus address table

(1) DO status (Function Code:1,5,15)
Address(Dec) Address(Hex)
00129
00130
(2) DI status (Function Code:2)
Address Data Address
00000 0x00
00001 0x01
00002 0x02
00003 0x03
00004 0x04
00005 0x05
(3) AI status(Function Code:4)
Address Data Address
30027 0x1B
30028 0x1C
Note:
1. AI value(Hex) conversion formulas: AI = (AI Hex * 20) / FFF
2. AI value(engineering)
Example:
(1) If read AI value(Hex) is "FF"
AI = (FF * 20) /FFF = (255*20)/4095 = 1.25 mA
(2) If read AI value(engineering) is "1250"
AI = 1250/1000 = 1.25mA
If function code = 1
Read DO0
0x81
If function code = 5,15
Set DO0, 1:High, 0:Low
If function code = 1
Read DO1
0x82
If function code = 5,15
Set DO1, 1:High, 0:Low
Read AI value (engineering)
conversion formulas: AI = AI(engineering)/1000
37
Description
Description
Read DI0
Read DI1
Read DI2
Read DI3
Read DI4
Read DI5
Description
Read AI value (hex)
Attribute
R/W
R/W
Attribute
R
R
R
R
R
R
Attribute
R
R