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Touchpoint 4 Serial Communication Protocol Issue 1 09/07
Generic Data Formats
Date Format
Time Format
Year
Date/Time Examples:
Concentration Code:
H
2 bytes.
Bit: 15 9 8 5 4 0
Year
Month
Figure 3. Data format
Year:
(7 bits)
Month:
(4 bits)
Day:
(5 bits)
Year is based from 1980. 1989 would be 1989 - 1980 = 9.
2 bytes
Bit: 15 11 10 5 4 0
Month
Figure 4. Time format
Hours:
(5 bits)
Minutes:
(6 bits)
Seconds:
(5 bits)
Seconds always be 0.
Date: 1F 56
Oct. 22. 1995
Date: 1F 75
Nov. 21, 1995
Time: 13 C0
02:30:00
Time: 74 00
14:32:00
Time: 47 00
08:56:00
2 bytes
Bit: 15 8 7 0
L
Figure 5. Concentration code format
For example, (HEX) 013D represents the value is 317.
Day
Day
6
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