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Section 7. Creating and Editing Datalogger Programs
way, but store the processed data in individual tables instead of arrays. Each
final storage table will contain only data for that interval – e.g., fifteen minute,
hourly, and daily data records will be in different tables. The user can more
closely control the size of these tables (for example to store a “buffer” of
twelve hours of one minute data without taking up all of the available
memory). In addition, the collected data file will have the date/time value in a
single string – e.g.; “2004-05-15 13:50:00” – that is more readable in third
party post-processing software. While there are some differences in
communications between the table-data (TD) and PakBus (PB) operating
systems, their measurement and final storage instructions are the same, so
Short Cut treats them identically.
The alternatives to Edlog dataloggers are CRBasic dataloggers. These include
the CR200 Series, CR1000, CR3000, CR800 Series, CR5000, CR9000, and
CR9000X. These dataloggers are also table-based, but programming syntax
follows a format more like the Basic programming language, complete with
declarations, scan sequences, and Basic-style logical statements.
Those users who are moving from Edlog to the CRBasic
dataloggers and who also need more control over datalogger
programs, may find Short Cut to be an excellent way to learn
CRBasic. You can follow the same steps in Short Cut for a
CRBasic datalogger as you would for an Edlog datalogger, but
then open the program in the CRBasic Editor to see how Short
Cut created the program. NOTE
7.2 Short Cut
7.2.1 Overview
The Short Cut program generator creates programs for Campbell Scientific
dataloggers in five easy-to-follow steps. Using a wizard-like interface, you
create a new or open an existing program, select the datalogger and specify
how often to make measurements, choose which sensors you wish to measure,
select intervals or trigger conditions on which to store data and what processing
to perform on the raw measurements for final storage, and finally generate the
program. Short Cut also generates a wiring diagram for connecting your
sensors to the datalogger.
Short Cut was designed to help the beginning datalogger programmer create
datalogger programs quickly and easily. Short Cut effectively insulates the
user from having to know the nuances of datalogger programming and the
Edlog versus CRBasic programming languages. It supports the most
commonly sold sensors from Campbell Scientific, as well as generic
measurements (such as differential voltage, bridge, and pulse), commonly used
calculation and control functions (such as heat index calculation, alarm
conditions, and simple controls), and multiplexer analog channel expansion
devices.
Short Cut cannot be used to edit existing Edlog, CRBasic, or Short Cut for
DOS programs. Program editing and more complex datalogger programming
functions should be accomplished using our Edlog or CRBasic Editor
programming tools.
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