Omron SYSMAC C2000H Operation Manual page 382

port
present value
printed circuit board
Printer Interface Unit
program
Programmable Controller
programmed alarm
programmed error
programmed message
Programming Console
Programming Device
PROGRAM mode
PROM Writer
prompt
PV
Rack
Glossary
A connector on a PC or computer that serves as a connection to an external
device.
The current value registered in a device at any instant during its operation.
Present value is abbreviated as PV.
A board onto which electrical circuits are printed for mounting into a comput-
er or electrical device.
A Unit used to interface a printer so that ladder diagrams and other data can
be printed out.
The list of instructions that tells the PC the sequence of control actions to be
carried out.
A computerized device that can accept inputs from external devices and gen-
erate outputs to external devices according to a program held in memory.
Programmable Controllers are used to automate control of external devices.
Although single-component Programmable Controllers are available, build-
ing-block Programmable Controllers are constructed from separate compo-
nents. Such building-block Programmable Controllers are formed only when
enough of these separate components are assembled to form a functional
assembly, i.e., no one individual Unit is called a PC.
An alarm given as a result of execution of an instruction designed to gener-
ate the alarm in the program, as opposed to one generated by the system.
An error arising as a result of the execution of an instruction designed to gen-
erate the error in the program, as opposed to one generated by the system.
A message generated as a result of execution of an instruction designed to
generate the message in the program, as opposed to one generated by the
system.
The simplest form or programming device available for a PC. Programming
Consoles are available both as hand-held models and as CPU-mounting
models.
A peripheral device used to input a program into a PC or to alter or monitor a
program already held in the PC. There are dedicated programming devices,
such as Programming Consoles, and there are non-dedicated devices, such
as a host computer.
A mode of operation that allows inputting and debugging of programs to be
carried out, but that does not permit normal execution of the program.
A peripheral device used to write programs and other data into a ROM for
permanent storage and application.
A message or symbol that appears on a display to request input from the op-
erator.
Acronym for present value.
An assembly of various Units on a Backplane that forms a functional unit in a
building-block PC System. Racks include CPU Racks, Expansion I/O Racks,
I/O Racks, and Slave Racks.
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