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APPENDIX 8
SCS 661 COMMUNICATION STRINGS
REMOTE COMPUTER TO SCS 661 CONSOLE
All request strings begin with $R, to indicate a Raven communication string.
Rate 1 Change Request:
$R,RC,<rate_1_cal><CR><LF>
Calibration String Values Request:
$R,CR<CR><LF>
Data String Request:
$R,DR<CR><LF>
SCS 661 CONSOLE TO REMOTE COMPUTER
All console output strings begin with $R103*, the $R indicates a Raven communication string, the 103 is
the last three digits of the current SCS 661 programmed chip part number and "*" denotes the software
revision letter.
NOTE: The "*" will be a blank or a letter denoting revision level.
Calibration Strings:
$R103*,C1,<switch_byte_1>,<switch_byte_2>,<boom_1_cal>,
<boom_2_cal>,<boom_3_cal>,<boom_4_cal>,<boom_5_cal>,
<boom_6_cal>,<boom_7_cal>, <boom _8_cal>, <boom_9_cal>,
<boom_10_cal>, <speed_cal>, <CR><LF>
$R103*,C2,<meter_cal>,<spreader_constant><CR><LF>
$R103*,C3,<valve_cal>,<rate_1_cal>,<rate_2_cal><CR><LF>
Bit
Switch Byte 1 Switch Byte 2
0
boom 1
boom 8
1
boom 2
boom 9
2
boom 3
boom 10
3
boom 4
rate 1
4
boom 5
rate 2
5
boom 6
0
6
boom 7
0
7
1
1
NOTE:
If rate 1 and rate 2 are both zero, the console is in Manual. For switch Byte
Bits; 0 = off and 1 = on.
Data Strings:
$R103*,D1,<total_area>,<field_area><CR><LF>
$R103*,D2,<total_volume>,<field_volume><CR><LF
$R103*,D3,<tank_volume>,<distance><CR><LF>
Actual Rate:
$R103*,AR,<actual_rate><CR><LF>
Time/Date:
$R103*,TD,<hr:min>,<month/day/year>,<field_reference><CR><LF>