Campbell CR300 Series Product Manual page 235

modem/terminal
Any device that has the following: ability to raise the ring line or be used with an optically
isolated interface to raise the ring line and put the data logger in the communication
command state, or an asynchronous serial communication port that can be configured to
communicate with the data logger.
modulo divide
A math operation. Result equals the remainder after a division.
MSB
Most significant bit (the leading bit).
multimeter
An inexpensive and readily available device useful in troubleshooting data acquisition sys-
tem faults.
multiplier
A term, often a parameter in a CRBasic measurement instruction, that designates the
slope (aka, scaling factor or gain) in a linear function. For example, when converting °C
to °F, the equation is °F = °C*1.8 + 32. The factor 1.8 is the multiplier.
mV
The SI abbreviation for millivolts.
N
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
Device in a PakBus network that communicates directly with a device without being
routed through an intermediate device.
Appendix C. Glossary 222