3. Instructions
794
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Basic I/O Unit Instructions
IORF
Applicable Program Areas
Operands
St: Starting Word
CIO 0000 to CIO 0999 (I/O Area) or
CIO 2000 to CIO 2959 (Special I/O Unit Area)
E: End Word
CIO 0000 to CIO 0999 (I/O Area) or
CIO 2000 to CIO 2959 (Special I/O Unit Area)
Note St and E must be in the same memory area.
z Operand Specifications
Flags
Instruction Mnemonic Variations
Function
code
Function
I/O REFRESH IORF @IORF 097 Refreshes the specified I/O words.
Symbol
IORF
Area
Function block
definitions
Block program areas Step program areas Subroutines Interrupt tasks
SFC action or
transition programs
Usage Not allowed OK OK OK OK Not allowed
Operand Description Data type Size
St Starting word --- Variable
EEnd word --- Variable
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
St, E OK --- --- --- --- --- --- --- --- ---
---
--- --- OK --- --- --- ---
Name Label Operation
Error Flag ER • ON if St is greater than E.
• ON if St and E are in different memory areas.
• With the CS1D CPU Units: ON if the active and standby CPU Units could not be synchronized.
• OFF in all other cases.
St: Starting word
E: End word
IORF(097)
St
E
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