Appendix; Appendix A: Sensor Discovery - In-situ Aqua TROLL 500 Operator's Manual

Appendix A: Sensor Discovery

The first register read in a PLC measurement sequence should be a 14-register block beginning with register
number 6984. Reading these registers triggers the sonde to scan its sensor ports and update its sensor
map. This guarantees the sonde has properly registered any changes to the sensor configuration a user
may have made since the last measurement sequence. The bitwise contents of these registers indicate
which parameter IDs (1 to 219) are currently available from the sonde according to the table below. Refer to
Appendix B for a description of the parameter ids.
Register
6984
6985
6986
6987
6988
6989
6990
6991
6992
6993
6994
6995
6996
6997
1-970-498-1500
Parameter ID Map
15 14
16 15
32 31
48 47
64 63
80 79
96 95
112 111
128 127
144 143
160 159
176 175
192 191
208 207
0 0

Appendix

Bit
13...2
14...3
30...19
46...35
65...51
78...67
94...83
110...99
126...115
142...131
158...147
174...163
190...179
206...195
219...211
57
1 0
2 1
18 17
34 33
50 49
66 65
82 81
98 97
114 113
130 129
146 145
162 161
178 177
194 193
210 209
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