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4.
Command String Development Information
4.1- To assist with developing command strings, the table below shows a Hex character
conversion chart
Hex Character
0
1
2
3
4
5
6
7
8
9
4.2 - An example of the proper coding technique is demonstrated below for the "Power On"
Command.
Hex Character Set: 6E: Power Function
Hex Coded Data: 364530303030303030303031
Note- an STX (02-Hex) would be added at the start of the string and ETX (03-Hex) would be
added at the end of the string to create a complete command.
4.3- Figure 6 shows the 14 byte string formatted in Hex Characters for the "Power On Function".
1
2
3
Start
02
6
E
Function
STX
(1 Byte)
(2 Byte)
Figure 6
4.4- Figure 7 shows the "Power On" function converted to Hex Code set
1
2
3
4
Start
02
36
45
30
Function
STX
(2 Byte)
(1 Byte)
Table 4.1.1 Hex Character Conversion Chart
Hex Code
Hex Character
30
31
32
33
34
35
36
37
38
39
00: Write Function (Note- A "01" would indicate a read function)
rd
00: 3
(Upper byte-Function)
th
00: 4
(Lower byte-Function)
th
00: 5
(Upper byte-Data)
th
01: 6
(Lower byte- Data
4
5
6
7
0
0
0
0
Read/Write
Function
Function
(2 Byte)
(2 Byte)
Function (2 Byte)
Figure 6
5
6
7
8
30
30
30
30
Read/Write
Function
(2 Byte)
(2 Byte)
Function (2 Byte)
18
Hex Code
A
41
B
42
C
43
D
44
E
45
F
46
8
9
10
11
12
0
0
0
0
Upper Data
Lower Data
(2 Byte)
(2 Byte)
Function (2 Byte)
Function (2 Byte)
Figure 6
9
10
11
12
30
30
30
30
Function
Upper Data
Lower Data
(2 Byte)
(2 Byte)
Function (2 Byte)
Function (2 Byte)
Figure 6
PW1A
13 14
Stop
0
1
ETX
(1 Byte)
(2 Byte)
13
14
Stop
31
ETX
(2 Byte)
(1 Byte)
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