Appendix A. Glossary of Terms
Retries
– When a transaction or communication between two devices or
programs fails, the transaction or communication can often be triggered to
repeat until it succeeds.
Retrieval
- (see Data Retrieval).
RF
– Radio Frequency.
RTDM
– Real Time Data Monitor software. A very sophisticated graphical
data display application that gets data from either data files or the
communication server’s data cache. RTDM is a stand-alone application.
RTMC
– Real Time Monitoring and Control software. A client application to
the communications server that displays data from the server’s data cache
(only) and updates as new data is collected. RTMC is relatively easy to set up,
and ships with LoggerNet.
RTMS
– Real-Time Monitoring Software. A software application designed by
Campbell Scientific for fast real-time data acquisition. RTMS included both
communications and graphical display features and was designed for IBM’s
OS/2 PC operating system and replaced by LoggerNet, RTMC and RTDM.
S
Scan Interval
- See Execution Interval.
SDI-12
- SDI-12 stands for Serial Digital Interface at 1200 baud. It is an
electrical interface standard and communications protocol that was originally
developed by Campbell Scientific and other manufacturers for the U.S.
Geological Survey for hydrologic and environmental sensors. SDI-12 was
designed to be a simple interface (ground, 12 volts, and signal) that improves
compatibility between dataloggers and "smart" microprocessor-based sensors.
Other goals of the SDI-12 standard are:
•
low power consumption for battery powered operation via the datalogger
•
low system cost
•
use of multiple sensors on one cable connected to one datalogger
•
allow up to 200 feet of cable between a sensor and a datalogger
Security Code
- A code entered into the datalogger either directly with a
keypad or via the datalogger’s program to prevent unauthorized access to
datalogger settings, programs, and data.
Server
–
Also “communication server”, a software application that accepts
connections from client applications and provides data or other information as
requested. The LoggerNet server manages all the communications and data
collection for a network of dataloggers. The collected data is made available
for client applications. PC200W and PC400 also use the communication server
but in a more limited configuration.
Short Cut
– A program generator application that ships with PC400,
LoggerNet, and is available as a stand-alone product from the Campbell
Scientific website. Short Cut does not require knowledge of individual
program instructions. Users need only know what kind of datalogger and
sensors they’re using and decide what output they require. Short Cut generates
A-10
Summary of Contents for PC400
Page 2: ......
Page 16: ...Section 1 Introduction 1 6...
Page 18: ...Section 2 System Requirements 2 2...
Page 46: ...Section 4 The PC400 Main Screen 4 24...
Page 49: ...Section 5 Split 5 3...
Page 82: ...Section 5 Split 5 36...
Page 114: ...Section 6 View 6 14...
Page 132: ...Section 7 Short Cut Program Generator 7 18...
Page 188: ...Section 9 Datalogger Program Creation with CRBasic Editor 9 30...
Page 230: ...Appendix B Table Based Dataloggers B 12...
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