ICP DAS USA ALM-06-WF User Manual page 35

5.2.5.2 16-bits Word
A 16-bits word item is transmitted with the most significant byte first. Function
code 03 and 04 read 16-bits items at a time; therefore, each of these data items will fit
within one register that is read.
5.2.5.3 32-bits Double Word
A 32-bits word item is transmitted with the most significant byte first. Function 04
read 32-bits items at a time; therefore, each of these data items will fit within 2 register
that is read.
0x12345678
5.3 ALM-06-WF Address Mapping
Address
00001
00002
Address
10001~10006
ALM-06-WF User's Manual
Value
0x1234
Table 5-4: A 16-bits word item
Value
Table 5-5: A 32-bits double word item
CH Descriptions
1 Digital Output
2 ARMED Status
Table 5-6: FC01 Read DO address (0xxxx)
CH Descriptions
1~6 Digital Input
Table 5-7: FC02 Read DI address (1xxxx)
ALM-06-WF
User's Manual (Rev1.0, Feb./2019) ------------- 35
1st
0x12
st
1 Word
0x5678
0=OFF, 1=ON
0=OFF, 1=ON
0=OFF, 1=ON
2nd
0x34
nd
2 Word
0x1234
Range Access Type
Range Access Type
R
R
R