Basic I/O Unit Instructions - Omron CJ - INSTRUCTIONS REFERENCE MANUAL 07-2009 Reference Manual

3. Instructions

Basic I/O Unit Instructions

IORF
Instruction
I/O REFRESH
Symbol
Applicable Program Areas
Function block
Area
definitions
Usage Not allowed
Operands
Operand
St Starting word
E End word
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.
Operand Specifications
Word addresses
Area
CIO WR HR
St, E OK --- ---
Flags
Name
Error Flag
768
Mnemonic Variations
IORF @IORF
Block program areas Step program areas
OK OK
Description
Indirect DM/EM
@DM
AR T C DM EM
@EM
--- --- --- --- ---
Label
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.
Function
code
097 Refreshes the specified I/O words.
IORF
IORF(097)
St: Starting word
St
E: End word
E
Subroutines
OK
Data type
---
---
addresses
Con-
stants
*DM
DR
*EM
--- --- ---
---
Operation
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Function
SFC action or
Interrupt tasks
transition programs
OK Not allowed
Size
Variable
Variable
Registers Flags
Pulse
bits
Indirect
IR TK CF
using IR
--- OK --- ---
TR
bits
--- ---