Campbell LoggerNet, Инструкция по эксплуатации

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Appendix A. Glossary of Terms
Station Number – The LoggerNet server assigns and uses station numbers for
routing packets to the dataloggers. These numbers can be modified using
CoraScript. Not to be confused with datalogger serial numbers, PakBus
addresses, or addresses set in communications peripherals such as RF or MD9
modems.
Storage – An entry in the status table that shows the number of final storage
locations available.
Synchronous – The transmission of data between devices occurs as groups of
zeros and ones. For the data to be “read” correctly, the receiving device must
begin reading at the proper point in the series. In synchronous
communications, this coordination is accomplished by synchronizing the
transmitting and receiving devices to a common clock signal (see
Asynchronous).
T
Tab Windows – Some screens depict a series of related windows in a multi-
tabbed notebook format. When you click the file folder tab, the information on
the tab you chose will be displayed.
Tables – An entry in the status table that shows the number of user-created
data tables. (See also Data Table.)
Table-based Dataloggers – Table-based dataloggers store each record of data
that follows an output instruction in a table. Each separate occurrence of an
output instruction directs the datalogger to store the data in a separate table.
“Table-based” includes both “TD” table-data and “PB” PakBus versions of the
Edlog dataloggers as well as the CRBasic dataloggers.
Table Definitions – List of data available from a table-based datalogger. The
datalogger supplies this list on request. The tables are determined by the
datalogger program. The LoggerNet server must have a current version of the
table definitions to collect data from the datalogger.
Time Stamp – The date and time when data are stored in the datalogger.
TMStamp – An entry in the status table that shows the date and time the status
information was recorded.
Transaction – The exchange of data or information between two devices or
programs. For example, setting the clock in a datalogger requires a transaction
between the server and the datalogger.
U
Uncollectable Hole – Occurs when a hole in the data cache cannot be collected
from the datalogger before the data table wraps around and the records are
overwritten.
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