Campbell Scientific TD Operating System Addendum for CR510, CR10X, and CR23X User Manual
Page 34
TD ADDENDUM—SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLES
AD-8-4
FIGURE 8.3-1. AM416 Wiring Diagram For Thermocouple and Soil Moisture Block Measurements
EXAMPLE PROGRAM MULTIPLEXING
THERMOCOUPLES AND SOIL MOISTURE
BLOCK
*
1
Table 1 Programs
01:
600
Sec. Execution Interval
01:
P11
Temp 107 Probe
01:
1
Rep
02:
4
IN Chan
03:
1
Excite all reps w/EXchan 1
04:
1
Loc [:REF_TEMP ]
05:
1
Mult
06:
0
Offset
02:
P86
Do
01:
41
Set high Port 1
03:
P87
Beginning of Loop
01:
0
Delay
02:
16
Loop Count
04:
P86
Do
01:
72
Pulse Port 2
05:
P14
Thermocouple Temp (DIFF)
01:
1
Rep
02:
21
2.5 mV 60 Hz rejection
Range
03:
1
IN Chan
04:
1
Type T (Copper-Constantan)
05:
1
Ref Temp Loc REF_TEMP
06:
2--
Loc [:TC_TEMP_1]
07:
1
Mult
08:
0
Offset
06:
P5
AC Half Bridge
01:
1
Rep
02:
14
250 mV fast Range
03:
3
IN Chan
04:
1
Excite all reps w/EXchan 1
05:
250
mV Excitation
06:
18--
Loc [:SOIL_M_1 ]
07:
1
Mult
08:
0
Offset
07:
P95
End
08:
P86
Do
01:
51
Set low Port 1
09:
P59
BR Transform Rf[X/(1-X)]
01:
16
Reps
02:
18
Loc [:SOIL_M_1 ]
03:
.1
Multiplier (Rf)
10:
P84
Data Table
01:
0
Seconds into interval
02: 3600
Seconds interval
03:
0
Records (0=auto; -=redirect)
11:
P71
Average
01:
33
Reps
02:
1
Loc REF_TEMP
12:
P
End Table 1
CR10X