MoTeC PLM - Manual (Page 53)

MoTeC Appendices 53
Appendix N – RS232 Message Format
Master PLM Message
Byte Description Value
0 Header 0 = 0x80 0x80
1 Header 1 = 0x81 0x81
2 Header 2 = 0x82 0x82
3 Data Length 32
4:5 PLM 1 (Master) Calibrated sensor reading Hi:Lo = x.xxxLa
6:7 PLM 2 Calibrated sensor reading Hi:Lo = x.xxxLa
8:9 PLM 3 Calibrated sensor reading Hi:Lo = x.xxxLa
. .
. .
32:33 PLM 15 Calibrated sensor reading Hi:Lo = x.xxxLa
34:35 PLM 16 Calibrated sensor reading Hi:Lo = x.xxxLa
36:37 Checksum Hi:Lo = 16 bit sum
of unsigned bytes 0
to 35
Non-Master PLM Message
Byte Description Value
0 Header 0 = 0x80 0x80
1 Header 1 = 0x81 0x81
2 Header 2 = 0x82 0x82
3 Data Length 8
4:5 Calibrated sensor reading Hi:Lo = x.xxxLa
6 Sensor cold status
7 Sensor faulty status
8 Sensor control state
9 Sensor in control status
10:11 RPM Hi:Lo = RPM
12:13 Checksum 16 bit sum of
unsigned bytes 0 to
11