Panasonic FP3 Technical Manual page 142

8-6. Terminology
hold:
interrupt:
I/O:
I/O update:
ladder diagram:
LCD:
leading edge differential:
Least Significant Bit (LSB):
Least Significant Digit (LSD):
LED:
link number:
136
The memory area whose contents will not be lost or modified if operating power is
lost or if the mode of the programmable controller is changed from RUN to PROG.
The act of performing a more urgent task by putting off the presently executing task.
FP series programmable controllers have three types of interrupts, as follows:
- input initiated interrupt
- high-speed counter initiated interrupt
- time initiated interrupt
Abbreviation of Input/Output.
Taking the input data at the input interface into the memory for program execution
and outputting the result of program execution to the output interface.
A standard for representing relay-logic systems.
Abbreviation for Liquid Crystal Display.
A programming technique to operate a bit only for one scan at the moment its input
condition turns ON from the OFF state.
The bit which represents the smallest value in a byte, word, or double-word.
The digit which represents the smallest value in a number.
Abbreviation for Light-Emitting Diode.
Link numbers are used for expressing the position of link units separately for the
standard link system and high-level link system, starting from the link unit at the slot
nearest to the CPU as follows:
[Link number for standard link system]
- FP3: "S link 1", "S link 2" and "S link 3"
- FP10S: "S link 1", "S link 2", "S link 3", "S link 4" and "S link 5"
S link 3 (MEWNET - W link unit)
S link 2 (MEWNET - P link unit)
S link 1 (C - NET link unit)