4-3.Data Transfer
Data Transfer is one of the functions available in a W Type(Wire) Link System.
In the W Type(Wire) Link System, data can be transferred from one Programmable Controller to a another with
instructions F145(SEND)/P145(PSEND) and F146(RECV)/P146(PRECV).
This function is available to any station(max. 32 stations) in a network.
Notes :
1. Memory Configuration of the FP3/FP5
The memory areas of FP3/FP5 Programmable Controllers which are related to the F145(SEND)/P145(PSEND)
and F146(RECV)/P146(PRECV) instructions are as follows:
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 all operated on at the same time when
a word operation is performed
Addresses for words 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 number for the specific bit. The least
significant digit is hexadecimal and the rest of the digits are decimal.
Example
X 3 8 F
Hexadecimal
Decimal(Word number)
• This function can be performed by all of the stations(max. 32) in a network.
• A maximum of 3 W Type(Wire) Link Units can be installed on a Master Backplane.
Each CPU can control a maximum of 3 P/W Link units.
The P/W Link units are :
P Type(Optical) Link Unit, W Type(Wire) Link Unit,
C.C.U.(Computer Communication Unit), C-NET Link Unit
The P/W Link units on a single CPU are assigned as P/W LINK 1, P/W LINK 2 and P/W LINK 3
starting with the unit closest to the CPU.
• A maximum of 16 words can be transferred at one time.
4-3. Data Transfer
38
Name of memory area
Available number of
Numbering system
points/words(address range)
Relays
External input relay (X)
2,048 points (X0 to X127F)
Relay bit numbering system
[= 128 words (WX0 to WX127)]
[Word numbering system]
External output relay (Y)
2,048 points (Y0 to Y127F)
Relay bit numbering system
[= 128 words (WY0 to WY127)]
[Word numbering system]
Internal relay (R)
1,568 points (R0 to R97F)
Relay bit numbering system
[= 98 words (WR0 to WR97)]
[Word numbering system]
Special internal relay(R)
176 points (R9000 to R910F)
Relay bit numbering system
[= 11 words (WR900 to WR910)]
[Word numbering system]
Link relay (L)
2,048 points (L0 to L127F)
Relay bit numbering system
[= 128 words (WL0 to WL127)]
[Word numbering system]
Registers Data register (DT)
2,048 words (DT0 to DT2,047)
Word numbering system
Special data register(DT)
226 points (DT9000 to DT9255) Word numbering system
File register (FL) FP3 10k Type
8,189 words (FL0 to FL8,188)
Word numbering system
FP3 16k Type FP5 22,525 words (FL0 to FL22,524)
Link data register (LD)
256 words (LD0 to LD255)
Word numbering system
Index register (IX/IY)
2 words (IX & IY)
IX or IY(No numbering system)
Timers/
Timer/Counter contact (T/C)
256 points (0 to 255)
Decimal numbering
Counters
Timer/Counter
256 words (SV0 to SV255)
Word numbering system
Set(Preset) value(SV)
Timer/Counter
256 words (EV0 to EV255)
Word numbering system
Elapsed(Count) value(EV)
