Campbell Scientific CR9000X Measurement and Control System - Manual (Page 425)

Appendix E. Glossary
input/output instructions used to initiate measurements and store the results
in Input Storage or to set or read Control/Logic Ports.
integer a number written without a fractional or decimal component. 15 and
7956 are integers. 1.5 and 79.56 are not integers.
intermediate storage that portion of memory allocated for the storage of
results of intermediate calculations necessary for operations such as
averages or standard deviations. Intermediate storage is not accessible to
the user.
IP Internet Protocol. A TCP/IP internet protocol.
IP Address A unique address for a device on the internet.
local variable a variable available for use only by the subroutine wherein it
was declared. The term differentiates local variables, which are declared
in the Sub () and Function() instructions, from global variables, which are
declared using Public or Dim.
LONG data type used when declaring integers.loop in a program, a series of
instructions which are repeated a prescribed number of times, followed by
an "end" instruction which exists the program from the loop.
loop counter increments by 1 with each pass through a loop.
manually initiated initiated by the user, usually with a keyboard, as opposed
to occurring under program control.
MD5 digest 16-byte checksum of the VTP configuration.
milli the SI prefix denoting 1 / 1000s of a base SI unit.
Modbus communication protocol published by Modicon in 1979 for use in
programmable logic controllers (PLCs).
modem/terminal any device which: 1) has the ability to raise the CR1000
ring line or be used with an optically isolated interface (Appendix F.10.2)
to raise the ring line and put the CR1000 in the Telecommunications
Command State and 2) has an asynchronous serial communication port
which can be configured to communicate with the CR1000.
multi-meter an inexpensive and readily available device useful in
troubleshooting data acquisition system faults.
mV the SI abbreviation for milliVolts.
NAN not a number. A data word indicating a measurement or processing
error. Voltage over range, SDI-12 sensor error, and undefined
mathematical results can produce NAN.
Neighbor Device devices in a PakBus®® network that can communicate
directly with an individual device without being routed through an
intermediate device. See also PakBus® and Beacon Interval.
NIST National Institute of Standards and Technology
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