Omron CQM1H - PROGRAM Programming Manual page 591

shift register
signed binary
software error
software protect
source (word)
special instruction
SR area
SSS
store
subroutine
subroutine number
subtract count input
SV
switching capacity
synchronous execution
syntax
syntax error
SYSMAC Support Software
system configuration
system error
system error message
566
Glossary
One or more words in which data is shifted a specified number of units to the
right or left in bit, digit, or word units. In a rotate register, data shifted out one
end is shifted back into the other end. In other shift registers, new data (either
specified data, zero(s) or one(s)) is shifted into one end and the data shifted
out at the other end is lost.
A binary value that is stored in memory along with a bit that indicates whether
the value is positive or negative.
An error that originates in a software program.
A means of protecting data from being changed that uses software as opposed
to a physical switch or other hardware setting.
The location from which data is taken for use in an instruction, as opposed to
the location to which the result of an instruction is to be written. The latter is
called the destination.
An instruction input with a function code that handles data processing opera-
tions within ladder diagrams, as opposed to a basic instruction, which makes
up the fundamental portion of a ladder diagram.
A memory area containing flags and other bits/words with specific functions.
See SYSMAC Support Software.
The process of recording a program written into a display buffer permanently
in memory.
A group of instructions placed separate from the main program and executed
only when called from the main program or activated by an interrupt.
A definer used to identify the subroutine that a subroutine call or interrupt acti-
vates.
An input signal used to decrement a counter when the signal changes from
OFF to ON.
See set value.
The maximum voltage/current that a relay can safely switch on and off.
Execution of programs and servicing operations in which program execution
and servicing are synchronized so that all servicing operations are executed
each time the programs are executed.
The form of a program statement (as opposed to its meaning).
An error in the way in which a program is written. Syntax errors can include
'spelling' mistakes (i.e., a function code that does not exist), mistakes in spec-
ifying operands within acceptable parameters (e.g., specifying read-only bits
as a destination), and mistakes in actual application of instructions (e.g., a call
to a subroutine that does not exist).
A software package installed on a IBM PC/AT or compatible computer to func-
tion as a Programming Device.
The arrangement in which Units in a System are connected. This term refers
to the conceptual arrangement and wiring together of all the devices needed
to comprise the System.
An error generated by the system, as opposed to one resulting from execution
of an instruction designed to generate an error.
An error message generated by the system, as opposed to one resulting from
execution of an instruction designed to generate a message.