Campbell Scientific AM16/32B Relay Multiplexer - Manual (Page 25)

AM16/32B Relay Multiplexer
Wiring for CR1000 Program Example
CR1000 AM16/32B (4x16) CS616*
ol/Com Contr mon
ensor S
Terminals
C4 ES d H CS616#1_Green R Od
C5 CLK dd L CS616#2_Green O
12 V 12 V Gnd #1,2,3_Blk & Clear
Gnd Gnd Even H CS616#3_Green
1H COM Odd H Even L #1,2,3_Orange
1L COM Odd L
Gnd Gnd
2H COM Even H
C6 COM Even L
*Three sensors to each set of AM16/32B terminals.
CR1000 Program E
'Declare Public &
xample
Dim Variables
Public batt_volt
Public Panel_temp
Public Period(48)
Public VWC(48)
Public Flag(1)
Dim I
'Declare Constants
'CS616 Default Cal
tants ibration Cons
const a0= -0.0663
const a1= -0.0063
const a2= 0.0007
'Flag logic constants
const high = true
const low = false
'Define Data Tables
DataTable (Dat30min,1,-1)
DataInterval (0,30,Min,10)
Minimum (1,batt_volt,FP2,0,False)
Average (1,Panel_temp,FP2,0)
Sample (48,Period(),FP2)
Sample (48,VWC(),FP2)
EndTable
'Main Program
BeginProg
Scan (5,Sec,0,0)
'scan instructions every 5 sec
Battery (Batt_volt)
PanelTemp (Panel_temp,250)
'
'Set flag 1 High every 30 min (Note: User can manually set flag 1 high/low)
If IfTime (0,30,min)Then flag (1)=high '++++++++++++++++++++++++
If Flag(1)=high Then
'measure 48ea CS616 probes on AM16/32B in (4x16) mode
PortSet (4,1)
'Set Mux Reset line High
'
I=1 'set sub scan loop counter
SubScan (0,mSec,16)
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