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6-4. Table of FP3/FP5 Operands
1. Organized by Processing Size
Notes :
Explanation of basic terminology
• Bit
: One binary digit. The smallest unit of binary information.
A bit can express a value of “1” or “0”.
• Word
: A word is composed of 16 bits which are operated on simultaneously when a
computer is performing an instruction.
Word addresses are expressed as decimal numbers.
• Relay bit address
: Addresses for relay bits(X,Y,R and L) are expressed as a combination of a
word address(decimal) and a hexadecimal bit identifier. The least significant
digit is hexadecimal and the rest of the digits are decimal.
Example
X 38 F
Hexadecimal
Decimal (Word number)
6-4. Table of FP3/FP5 Operands
83
Processing
Name
Symbol
Numbering
size
Bit
External input relay
X
X0 to X127F(= WX0 to WX127)
External output relay
Y
Y0 to Y127F(= WY0 to WY127)
Internal relay
R
R0 to R97F (= WR0 to WR97)
Special internal relay
R
R9000 to R910F (= WR900 to WR910)
Link relay
L
L0 to L127F (= WL0 to WL127)
Timer contact
T
T0 to T255 Shared area
Counter contact
C
C0 to C255
Word
Word external input relay
WX
WX0 to WX127(= X0 to X127F)
Word external output relay
WY
WY0 to WY127 (= Y0 to Y127F)
Word internal relay
WR
WR0 to WR97 (= R0 to R97F)
Word special internal relay
WR
WR900 to WR910 (= R9000 to R910F)
Word link relay
WL
WL0 to WL127 (= L0 to L127F)
Data register
DT
DT0 to DT2047
Special data register
DT
DT9000 to DT9255
Link data register
LD
LD0 to LD255
File register
FL
FP3
: FL0 to FL8188
FP3(16K type) & FP5 : FL0 to FL22524
Index register IX
IX
One word each (No numbering system)
Index register IY
IY
Timer/Counter Set(Preset) value
SV
SV0 to SV255
Timer/Counter Elapsed(Count) value
EV
EV0 to EV255
Word decimal constant
K
K-32768 to K32767
Word hexadecimal constant
H
H0 to HFFFF
Double word
Double word decimal constant
K
K-214783648 to K214783647
Double word hexadecimal constant
H
H0 to HFFFFFFFF
12 Characters
Character constant
M
None