WF-2000 Series AIO
User’s Manual (Ver. 1.1, Mar./2014) ------------- 41
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.
Table 5-4: A 16-bits word item
Value
1st
2nd
0x1234
0x12
0x34
5.3 Address Mapping
5.3.1
WF-2017 I/O Address Mapping
Table 5-5:
(3xxxx) AI address
Begin Address
Points
Descriptions
Range
Access Type
30001
(0x0)
0~15
Analog Input
-32768 ~ +32767
R
30017
(0x10)
1
AI Wire Select
0 ~ 1
0 => Differential
1 => Single-Ended
R
