Campbell Scientific CR10 CR10 Measurement and Control - Page 114

SECTION 8. PROCESSING AND PROGRAM CONTROL EXAMPLES CR IO AM4I6 12V ti1-.2:,V - - I i \, (, 1 t) 1H IL J :il -i--' GND R[S CLK COM H1 COM LI SETS 1_16 txl 2l SETS 1-16 AG EX2 2H AG ]luCvOlvMl H"-2/ ---J lCOtr,t L2 o- Hz--] -o:"--_Ll-2= ,-.r- FIGURE 8.3-1. AM416 Wiring Diagram For Thermocouple and Soil Moisture Block EXAMPLE PROGRAM MULTIPLEXING THERMOCOUPLES AND SOIL MOISTURE BLOCK 1 01: 600 Table 1 Programs Sec. Execution Interval 01: P11 01: 1 o2: 4 03: 1 04: 1 05: 1 06: 0 Temp 107 Probe Rep lN Chan Excite all reps w/EXchan 1 Loc [:REF TEMP ] Mult Offset 06: P5 01: 1 02: 14 03: 3 04:. 1 05: 250 06: 18-07: 1 08: 0 07: P95 08: P86 01: 51 AC Half Bridge Rep 250 mV fast Range lN Chan Excite all reps w/EXchan 1 mV Excitation Loc [:SOIL M#1 ] Mult Offset End Do Set low Port 1 02: P86 01: 41 03: P87 01: 0 02: 16 o4"" P86 01: 72 Do Set high Port 1 Beginning of Loop Delay Loop Count Do Pulse Port 2 09: 01: 02: 03: P59 16 18 .1 10: P92 01: 0 02: 60 03: 10 BR Transform Rf[)U(1 -X)] Reps Loc [:SOIL M#1 ] Multiplier (Rf) lf time is minutes into a minute interval Set high Flag 0 (output) 05: 01: 02: 03: 04" 05: 06: 07:. 08: P14 I 2'l 1 1 1 2-- 1 0 Thermocouple Temp (DIFF) Rep 2.5 mV 60 Hz rejection Range lN Chan Type T (Copper-Constantan) Ref Temp Loc REF TEMP Loc [:TC TEMP#1] Mult Otfset 11: P77 01: 110 12: P71 01: 33 02: 1 13: P RealTime Day,Hour-Minute Average Reps Loc REF TEMP End Table 1 8-4