Rockwell Automation 1766-Lxxxx MicroLogix 1400 Programmable Controllers User Manual - Manual (Page 395)

Rockwell Automation Publication 1766-UM001H-EN-P - May 2014 355
Glossary
online
Describes devices under direct communication. For example, when RSLogix
500/RSLogix Micro is monitoring the program file in a controller.
operating voltage
For inputs, the voltage range needed for the input to be in the On state. For
outputs, the allowable range of user-supplied voltage.
output device
A device, such as a pilot light or a motor starter coil, that is controlled by the
controller.
processor
A Central Processing Unit. (See CPU.)
processor file
The set of program and data files used by the controller to control output devices.
Only one processor file may be stored in the controller at a time.
program file
The area within a processor file that contains the ladder logic program.
program mode
When the controller is not executing the processor file and all outputs are
de-energized.
program scan
A part of the controller’s operating cycle. During the scan the ladder program is
executed and the output data file is updated based on the program and the input
data file.
programming device
Executable programming package used to develop ladder diagrams.
protocol
The packaging of information that is transmitted across a network.