Campbell CR300 Series Product Manual page 240

PLC
Programmable Logic Controllers
Poisson ratio
A ratio used in strain measurements.
ppm
Parts per million.
precision
The amount of agreement between repeated measurements of the same quantity (AKA
repeatability).
PreserveVariables
CRBasic instruction that protects Public variables from being erased when a program is
recompiled.
print device
Any device capable of receiving output over pin 6 (the PE line) in a receive-only mode.
Printers, "dumb" terminals, and computers in a terminal mode fall in this category.
print peripheral
Any device capable of receiving output over pin 6 (the PE line) in a receive-only mode.
Printers, "dumb" terminals, and computers in a terminal mode fall in this category.
processing instructions
CRBasic instructions used to further process input-data values and return the result to a
variable where it can be accessed for output processing. Arithmetic and transcendental
functions are included.
program control instructions
Modify the execution sequence of CRBasic instructions. Also used to set or clear flags.
Appendix C. Glossary 227