Campbell Scientific CR200/CR200X-series Dataloggers - Manual (Page 183)

Appendix A. Glossary
state
Whether a device is on or off.
string
A datum consisting of alpha-numeric characters. CR200(X) dataloggers do
not support the STRING variable type.
support software
Includes PC200W, PC400, RTDAQ, LoggerNet.
synchronous
The transmission of data between a transmitting and receiving device
occurs as a series 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 communication, this coordination is accomplished by
synchronizing the transmitting and receiving devices to a common clock
signal (see Asynchronous (Appendix p. 1)).
throughput
The throughput rate is the rate at which a measurement can be made, scaled
to engineering units, and the reading stored in a data table. The CR200(X)
has the ability to scan sensors at a rate exceeding the throughput rate. The
primary factor affecting throughput rate is the amount of processing
specified by the user. In a CR200(X) all processing called for by an
instruction must be completed before moving on the next instruction.
TLL
Transistor - Transistor Logic. A serial protocol using 0V and 5V as logic
signal levels.
toggle
To reverse the current power state.
UPS
Uninterruptible power supply. A UPS can be constructed for most
datalogger applications using AC line power, an AC/AC or AC/DC wall
adapter, a charge controller, and a rechargeable battery.
User Program
The CRBASIC program written by the CR200(X) user in CRBASIC Editor
or Short Cut.
variable
A packet of CR200(X) memory given an alpha-numeric name, which holds
a potentially changing number or string.
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