C40K-CDR-A Omron, C40K-CDR-A Datasheet - Page 213

• Manufacturer Part Number: C40K-CDR-A
• Description: PROGRAMMABLE CONTROLLER CPU
• Manufacturer: Omron

Specifications of C40K-CDR-A

• Leaded Process Compatible: No
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ladder diagram symbol
ladder instruction
leftmost (bit/word)
link
load
logic block
logic block instruction
LR area
Master
main program
memory area
mnemonic code
MONITOR mode
NC input
nest
NO input
noise interference
A symbol used in a ladder-diagram program.
An instruction that represents the ‘rung’ portion of a ladder-diagram program.
The other instructions in a ladder diagram fall along the right side of the dia-
gram and are called terminal instructions.
The highest numbered bits of a group of bits, generally of an entire word, or
the highest numbered words of a group of words. These bits/words are often
called most significant bits/words.
A hardware or software connection formed between two Units. “Link” can
refer either to a part of the physical connection between two Units or a soft-
ware connection created to data existing at another location (I/O Links).
The processes of copying data either from an external device or from a stor-
age area to an active portion of the system such as a display buffer. Also, an
output device connected to the PC is called a load.
A group of instructions that is logically related in a ladder-diagram program
and that requires logic block instructions to relate it to other instructions or
logic blocks.
An instruction used to locally combine the execution condition resulting from
a logic block with a current execution condition. The current execution condi-
tion could be the result of a single condition or of another logic block. AND
Load and OR Load are the two logic block instructions.
A data area that is used in a PC Link System so that data can be transferred
between two or more PCs. If a PC Link System is not used, the LR area is
available for use as work bits.
Short for Remote I/O Master Unit.
All of a program except for the subroutines.
Any of the areas in the PC used to hold data or programs.
A form of a ladder-diagram program that consists of a sequential list of the
instructions without using a ladder diagram. Mnemonic code is required to
input a program into a PC when using a Programming Console.
A mode of PC operation in which normal program execution is possible but in
which modification of data held in memory is still possible. Used for monitor-
ing or debugging the PC.
An input that is normally closed, i.e., the input signal is considered to be
present when the circuit connected to the input opens.
Programming one jump within another jump, programming a call to a subrou-
tine from within another subroutine, etc.
An input that is normally open, i.e., the input signal is considered to be pres-
ent when the circuit connected to the input closes.
Disturbances in signals caused by electrical noise.
Glossary
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