Panasonic FP3

FP3 MEWNET-TR
Chapter8-6. Page.136
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8-6. Terminology
address:
An alphanumeric value that identifies where data is stored.
ambient temperature:
The temperature of the air surrounding a system.
American Wire Gauge (AWG):
A standard system used for designating the size of electrical conductors.
Larger gauge numbers have smaller diameter.
AND:
A Booleanoperation that produces a logic “1” outputifall inputs are “1”, and alogic
“0” if any input is “0”.
ASCII:
AmericanStandardCode forInformationInterchange.ASCIIisnormallyusedwhen
alphanumeric (letters and decimal numbers) and control codes are sent as
information to printers, etc. ASCII can be represented using 7 or 8 bits and is often
expressedina2-digithexadecimalformconvertedfromspecificbinaryexpressions.
ASCII expressed in 2-digit hexadecimals is called “ASCII HEX code”.
For details about actual ASCII codes, refer to the table for ASCII.
[EXAMPLE] When a letter “M” is expressed in ASCII code:
7-bit ASCII : 1001101 (binary)
ASCII HEX code: 4D (hexadecimal)
asynchronous:
Not synchronous. Repeated operations that take place in patterns unrelated over
time.
AWG:
See American Wire Gauge (AWG).
backplane:
Aprintedcircuitboardlocated inthe backof achassis,thatcontainsadatabus,power
bus, and mating connectors for units. For FP3,FP5, FP10S and FP10 programmable
controllers, two types of backplanes are available:
Master Backplane
Expansion Backplane
backup:
A device that is kept available to replace something that may fail during operation.
battery backup:
A battery or set of batteries that will provide power to the processor memory only
when system power is lost. FP3 CPU, FP10S CPU, and S-RAM type IC cards have
a battery backup system.
battery low:
Aconditionthat exists when the backup battery voltage drops low enough torequire
battery replacement. For FP3 CPU, FP10S CPU, S-RAM and S-RAM/
Flash-EEPROM type IC cards, the ERROR LED turns ON.
baud:
Formally defined as the shortest pulse width in data communication. However,
usually used toreferto the number ofbinarybits transmitted persecond (bps)during
serial data communication.
BCC:
See Block Check Code
BCD:
See Binary Coded Decimal
8-6. Terminology