4.2
Boreal Laser Inc.
GasFinderMC Operation Manual — Data I/O
July 17th 2017
Serial Communications
The
GasFinderMC
will transmit serial data at 300 / 1200 / 2400 / 4800 / 9600/ 19200 / 38400
/ 57600 / 115200 / 230400 baud, no parity, 8 bits, one stop bit, (i.e., 9600,N,8,1) after each
scan. Two handshaking options are available:
No Handshaking — Connect pin 4 (PCDTR) to pin 12 (+5VDC) at the
•
GasFinderMC
end
of the data cable. Data will be sent automatically after every scan. This is the standard
confi guration of the cable as supplied by Boreal Laser Inc.
DTR Handshaking — The control computer raises the voltage to +5VDC on pin 4 (PCDTR)
•
in order to request a data string. Data are transmitted as an ASCII string and will be sent only
when requested by the host computer.
Data String Specifi cation
$GFDTA
Field Description
Range
Max. Width (Chars)
Restrictions
data_header
Any
6
gas_concentration
0 – 99999999
8
confi dence_factor
0 – 99
2
distance
1 – 9999
4
light_value
1 – 16384
5
date_time
Year/Month/Day
19
Hour/Minute/Sec
serial_number
Any
10
status_code
1 – FFFF
4
check_sum
0 – FF
2
These data strings are comma-delimited (,) and an asterisk (*) signifi es end of string.
Each string is terminated by a carriage return and a line feed.
The status codes are described in detail in Appendix B of this manual.
data_header
channel_number
gas_concentration
confi dence_factor,R2
distance
light_level
date_time
ser_number
status_code
check_sum
header designating the type of data
String
channel indicator between 1 and 8
Integer
in ppmm (parts per million meter)
Number
between 0 and 99
Integer
user-set distance to retro in metres x 10 Number
returning light level
Integer
current date and time YYYY/MM/DD hh:mm:ss
identifi cation number of the system
String
code giving system operating status
Integer
checks the data stream for errors
String
data_header
gas_concentration
confi dence_factor R2
distance
light_level
date_time
ser_number
status_code
check_sum
channel_number
$GFDTA, 1,
7.7,
98,
600,
5527,
2011/01/27
13:29:28,
HFMC-1xxx,
1,
*56
$GFDTA,
2,
193,
99,
56,
11328,
2011/01/27 13:29:29,
HFMC_1xxx,
1,
*2F
Two examples of data string outputs from a
GasFinderMC
are shown below:
Содержание GasFinderMC-2
Страница 8: ...viii Boreal Laser Inc GasFinderMC Operation Manual Contents July 17th 2017 ...
Страница 24: ...3 14 Boreal Laser Inc GasFinderMC Operation Manual Installation July 17th 2017 ...
Страница 30: ...4 6 Boreal Laser Inc GasFinderMC Operation Manual Data I O July 17th 2017 ...
Страница 70: ...Boreal Laser Inc GasFinderMC Installation Manual April 2011 This page intentionally left blank ...
Страница 71: ...BOREAL LASER INC MC Instrument Overall Dimensions JB0125MC A 1 of 1 NTS A Dim mm ...
Страница 72: ...10 2 Boreal Laser Inc GasFinderMC Installation Manual Drawings August 2011 This page left intentionally blank ...
Страница 73: ......
Страница 74: ...10 2 Boreal Laser Inc GasFinderMC Installation Manual Drawings August 2011 This page left intentionally blank ...
Страница 75: ......
Страница 76: ...10 2 Boreal Laser Inc GasFinderMC Installation Manual Drawings August 2011 This page left intentionally blank ...
Страница 78: ...Boreal Laser Inc GasFinderMC Installation Manual April 2011 This page intentionally left blank ...
Страница 79: ......
Страница 80: ...10 2 Boreal Laser Inc GasFinderMC Installation Manual Drawings August 2011 This page left intentionally blank ...
Страница 81: ......
Страница 82: ...10 2 Boreal Laser Inc GasFinderMC Installation Manual Drawings August 2011 This page left intentionally blank ...
Страница 83: ......
Страница 84: ...10 2 Boreal Laser Inc GasFinderMC Installation Manual Drawings August 2011 This page left intentionally blank ...
Страница 85: ......
Страница 86: ...10 2 Boreal Laser Inc GasFinderMC Installation Manual Drawings August 2011 This page left intentionally blank ...
Страница 87: ......
Страница 88: ...10 2 Boreal Laser Inc GasFinderMC Installation Manual Drawings August 2011 This page left intentionally blank ...
Страница 89: ......
Страница 90: ...10 2 Boreal Laser Inc GasFinderMC Installation Manual Drawings August 2011 This page left intentionally blank ...