3. Instructions
842
CS/CJ/NSJ Series Instructions Reference Manual (W474)
IOWR
Applicable Program Areas
Operands
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
(to specify unit numbers 0 to 95)
CPU Bus Unit: 8000 to 800F hex
(to specify unit numbers 0 to F hex)
D+1: Number of words to transfer
(0000 to 0080 Hex, depends on Special I/O Unit or CPU Bus Unit)
z Operand Specifications
Instruction Mnemonic Variations
Function
code
Function
INTELLIGENT I/O WRITE IOWR @IOWR 223
Outputs the contents of the CPU Unit's I/O mem-
ory area to a Special I/O Unit or CPU Bus Unit.
Symbol
IOWR
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
C Control data UINT 1
S Transfer source and number of words WORD Variable
D Transfer destination and number of words UDINT 2
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
C
OK OK OK OK OK OK OK OK OK OK OK
OK
--- OK --- --- --- ---S
---
D
C: Control data
S: Transfer source and number of words
D: Transfer destination and number of words
IOWR(223)
C
S
D
D+1
D
D+1: Leftmost 4 digits
D: Rightmost 4 digits
To Next Page
Loading...
Need help?
General
