Creating A Short Cut Data Logger Program - Campbell CR300 Series Product Manual

15. Creating a Short Cut data
logger program
You must provide a program for the data logger in order for it to make measurements, store
data, or control external devices. There are several ways to write a program. The simplest is to use
the program generator called Short Cut. For more complex programming, CRBasic Editor is used.
The program file may use the extension .CR300, .CRB, or .DLD.
Data logger programs are executed on a precise schedule termed the scan interval, based on the
data logger internal clock.
Measurements are first stored in temporary memory called variables in the Public table. Data
stored in variables is usually overwritten each scan. Periodically, generally on a time interval, the
data logger stores data in tables. The data tables are later copied to a computer using your data
logger support software.
Use Short Cut software to generate a program for your data logger. Short Cut is included with
your data logger support software.
This section guides you through programming a CR300 series data logger to measure the
voltage of the data logger power supply, the internal temperature of the data logger, and a
thermocouple. With minor changes, these steps can apply to other measurements. Use the
following instructions or watch the
1. Using data logger support software, launch Short Cut.
LoggerNet users, click Program then Short Cut
l
PC400 users, click Short Cut
l
2. Click Create New Program.
3. Select CR300 Series and click Next.
NOTE:
The first time Short Cut is run, a prompt asks for a noise rejection choice. Select 60 Hz
Noise Rejection for North America and areas using 60 Hz ac voltage. Select 50 Hz Noise
Rejection for most of the Eastern Hemisphere and areas that operate at 50 Hz.
Quickstart part 3 video
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15. Creating a Short Cut data logger program 71