Campbell CR300 Series Product Manual page 27

Compact datalogger
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The following image illustrates a simple application wherein a C terminal configured for digital
input, and another configured for control output are used to control a device (turn it on or off)
and monitor the state of the device (whether the device is on or off).
In the case of a cell modem, control is based on time. The modem requires 12 VDC power, so
connect its power wire to a data logger SW12 terminal. The following code snip turns the modem
on for the first ten minutes of every hour using the
If/Then
in an
logic statement:
If TimeIsBetween
SW12
Else
SW12
EndIf
(0,10,60,Min)
(1)
'Turn phone on.
(0)
'Turn phone off.
TimeIsBetween()
Then
2. Wiring panel and terminal functions
instruction embedded
14

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