Appendix 59
XX = Current GPA or PPA Units digit
2E = Decimal Point
XX = Current GPA or PPA Tenths digit
00 = NULL
Checksum = undetermined
7. Read Channel 1 Type (24 06 02 F1 03)
24 = Start of message
06 = Read Message
02 = Two Character Message
F1 = Channel 1
03 = Channel Type
Checksum = 35
The 8160 will transmit a Channel Type Reply
message in response to a Read Channel Type
message. It will reflect that the channel is either
a liquid type or an NH3 type depending what is
selected.
Transmitted Channel Type Reply Message
24 = Start of Message
F1 = Channel 1 Data
02 = Data Field Size
03 = Channel Type Info
Depending on which mode the 8160 is in the re-
maining characters of the message will be:
Spray Mode
02 = Channel 1 liquid Type
39 = Checksum for Liquid
OR
NH3 Mode
03 = Channel 1 NH3 type
38 = Checksum for NH3
8. Read System Statistics - Proprietary (24 06
02 F0 FF)
The breakdown is as follows:
24 = Start of message
06 = Read Message
02 = Two Character Message
F0 = System
FF = System Statistics
3A = Checksum
When received, the parser will transmit the fol-
lowing snap shot of actual rate, speed in MPH,
and active boom width in inches.
Snapshot Reply Message
24 = Start of Message
F1 = Channel 1 Data 13 = Data Field Size
7F = set target rate reply
XX = Current GPA/PPA Hundreds digit
XX = Current GPA/PPA Tens digit
XX = Current GPA/PPA Units digit
2E = Decimal Point
XX = Current GPA/PPA Tenths digit
00 = NULL
2C = Comma
XX = Current Ground Speed (mph) Tens digit
XX = Current Ground Speed (mph) Units digit
2E = Decimal Point
XX = Current Ground Speed (mph) Tenths digit
00 = NULL
2C = Comma
XX = Current Active Boom width (inches) Thou-
sands digit
XX = Current Active Boom width (inches) Hun-
dreds digit
XX = Current Active Boom width (inches) Tens
digit
XX = Current Active Boom width (inches) Units
digit
00 = NULL
XX = Checksum
The “current active boom width” should repre-
sent the total width of all boom sections that
are turned on. If the Run/Hold switch is in the
hold position, the boom width returned should
be zero.
“GENERIC” PROTOCOL
The 8160 data logger uses the communications
strings listed to pass data out through the se-
rial port. With data logging turned on data is trig-
gered to be sent once every second
Upon each trigger, the Actual Rate string, Data
Strings 1, 2, and 3, and the Time/Date string are
sent, in that order.
When a Console calibration value is changed,
the Console will automatically send out the C1,
C2, and C3 calibration strings.
Summary of Contents for 8160
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