797
3. Instructions
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Basic I/O Unit Instructions
3
FIORF
FIORF
Applicable Program Areas
Operands
N: Unit number
Specifies the Special I/O Unit's unit number (0000 to 005F hex or 0 to 95 decimal).
Note If the Special I/O Unit uses more than one unit number, specify the lowest unit number.
z Operand Specifications
Flags
Units Refreshed by FIORF(225)
Instruction Mnemonic Variations
Function
code
Function
SPECIAL I/O UNIT I/O
REFRESH
FIORF @FIORF 225
Performs I/O refreshing immediately for the speci-
fied Special I/O Unit's allocated CIO Area and DM
Area words with the specified unit number.
Symbol
FIORF
Area
Function block
definitions
Block program areas Step program areas Subroutines Interrupt tasks
SFC action or
transition programs
Usage OK OK OK OK OK OK
Operand Description Data type Size
N Unit number UINT 1
Area
Word addresses
Indirect DM/EM
addresses
Con-
stants
Registers Flags
Pulse
bits
TR
bits
CIO WR HR AR T C DM EM
@DM
@EM
*DM
*EM
DR IR
Indirect
using IR
TK CF
N OKOKOKOKOKOKOKOK OK OK
OK
OK --- OK --- --- --- ---
Name Label Operation
Error Flag P_ER • ON if the specified unit number is not between 0000 and 005F hex (between 0 and 95 decimal).
• ON if the PLC does not have a Special I/O Unit with the unit number specified by N.
• ON if the specified Special I/O Unit uses more is allocated words for two or more unit numbers, but
the unit number specified by N is not the lowest of those unit numbers.
• OFF in all other cases.
Equals Flag P_EQ • ON if the I/O refreshing was completed normally.
• OFF if FIORF(225) was executed while the specified Special I/O Unit was being refreshed during
cyclic refreshing.
Rack Unit type
Refreshable
by FIORF(255)
CPU Rack or Expansion I/O Rack
(Not applicable to Units on
SYSMAC BUS Slave Racks.)
Basic I/O Units No
The following areas allocated to a Special I/O Unit
(The words allocated to the specified Unit are refreshed together.)
• Allocated CIO Area words
• Allocated DM Area words
Ye s
CPU Bus Units No
N: Unit number
FIORF(225)
N
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