Iowr - Omron CJ - INSTRUCTIONS Reference Manual

3. Instructions

IOWR

Instruction
INTELLIGENT I/O WRITE
Symbol
Applicable Program Areas
Function block
Area
definitions
Usage OK
Operands
Operand
C Control data
S Transfer source and number of words
D Transfer destination and number of words
Note If IOWR(223) is executed for a CPU Bus Unit running under a CPU Unit that does not support using IOWR(223) for CPU
Bus Units, an error will occur and the ER Flag will turn ON.
C: Depends on Special I/O Unit or CPU Bus Unit.
D: Special I/O Unit: 0000 to 005F hex
CPU Bus Unit: 8000 to 800F hex
D+1: Number of words to transfer
(0000 to 0080 Hex, depends on Special I/O Unit or CPU Bus Unit)
D+1
Operand Specifications
Word addresses
Area
CIO WR HR
C
S OK OK OK
D
842
Mnemonic Variations
IOWR @IOWR
IOWR(223)
Block program areas Step program areas
OK OK
Description
(to specify unit numbers 0 to 95)
(to specify unit numbers 0 to F hex)
D
D+1: Leftmost 4 digits
D: Rightmost 4 digits
Indirect DM/EM
@DM
AR T C DM EM
@EM
OK OK OK OK OK OK
Function
code
Outputs the contents of the CPU Unit's I/O mem-
223
ory area to a Special I/O Unit or CPU Bus Unit.
IOWR
C: Control data
C
S: Transfer source and number of words
S
D: Transfer destination and number of words
D
Subroutines
OK
Data type
UINT
WORD
UDINT
addresses
Con-
stants
*DM
DR
*EM
OK
OK OK
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CS/CJ/NSJ Series Instructions Reference Manual (W474)
Function
SFC action or
Interrupt tasks
transition programs
OK OK
Size
1
Variable
2
Registers Flags
Pulse
bits
Indirect
IR TK CF
using IR
--- OK --- ---
TR
bits
--- ---