Panasonic FP Series User Manual

Data transfer within the PLC
843
Part III FP Instructions
F143_IORF
Partial I/O update
Using this instruction, you can update inputs or outputs without the time-lag caused by scanning.
The same type of operand should be specified for d1_Start and d2_End.
PLCs with configurable, serially numbered I/O addresses:
FP2, FP2SH, FP3 /5 /10 /10SH (PLCs with backplanes)
 Specify the word address as 0  d1_Start  d2_End  127.
If only WX10 (or WY10) are to be updated based on the I/O-address
configuration, d1_Start and d2_End will be set as follows: d1_Start = 10 and
d2_End = 10.
 Set the same word address in d1_Start and d2_End to update only 1 word.
The partial I/O update instruction is executed only for the I/O units on the master backplane or
expansion backplane. It is not executed for the I/O unit in the slave station of the Remote I/O
System.
PLCs whose I/O addresses cannot be configured and are not serially numbered:
FP-, FP0 (PLCs without backplanes)
The instruction F143_IORF updates the inputs and outputs specified by d1_Start (starting word
address) and d2_End (ending word address) immediately after the trigger turns ON even in the
program execution stage.
 With the FP0 and FP-, refreshing initiated by the IORF command is done
only for the control unit.
 If d1_Start and d2_End are variables and not constants, then the compiler
automatically accesses the variables' values via the index register.
 With input refreshing, WX0 should be specified for d1_Start and d2_End.
 With output refreshing, WY0 should be specified for d1_Start and
d2_End.
PLC types Availability of F143_IORF (see page 1321)
This instruction also exists as a P instruction (for FP2/2SH, FP3/5, FP10/10SH PLC types), which
is only executed at the rising edge of the EN trigger. Select [Insert P instruction] from the
"Instructions" pane if you require a P instruction. To facilitate reuse, the instruction then appears
under "Recently used" in the pop-up menu. Press <Ctrl>+<Shift>+<v> within the programming
area to open the list of recently used elements.
Description
Updates the inputs or outputs specified by the value of d1_Start (starting word address) and the
value of d2_End (ending word address) immediately after the trigger EN is in the ON-state even in
the program execution stage.

Panasonic FP Series Specifications

General

Mounting	DIN rail
Type	PLC
Communication Interface	RS-232, RS-485, Ethernet (depending on model)
Input Voltage	100-240V AC or 24V DC (depending on model)
Output Type	Relay, Transistor
I/O Points	Varies by model
Operating Temperature	0°C to 55°C
Dimensions	Varies by model
Weight	Varies by model