Basic I/O Unit Instructions - Omron SYSMAC CS Series Programming Manual

Basic I/O Unit Instructions

3-19 Basic I/O Unit Instructions

Instruction Symbol/Operand
Mnemonic
Code
I/O REFRESH
IORF(097)
IORF
@IORF
097
St: Starting word
E: End word
7-SEGMENT
SDEC(078)
DECODER
SDEC
@SDEC
078
S: Source word
Di: Digit
designator
D: 1st destination
word
INTELLIGENT I/O
IORD(222)
READ
IORD
@IORD
222
C: Control data
S: Transfer
source and
number of words
D: Transfer
destination and
number of words
INTELLIGENT I/O
WRITE
IOWR(223)
IOWR
@IOWR
223
C: Control data
S: Transfer
source and
number of words
D: Transfer
destination and
number of words
Refreshes the specified I/O words.
I/O bit area or
St
Special I/O Unit bit area
E
St
E
Converts the hexadecimal contents of the designated digit(s) into 8-bit,
7-segment display code and places it into the upper or lower 8-bits of the
specified destination words.
S
Di
D
7-segment
Reads the contents of the I/O Unit's memory area.
S
C
S+1
S
D
Outputs the contents of the CPU Unit's I/O memory area to the Special I/O
Unit.
C
D
S
D+1
D
Function
I/O Unit or
Special I/O Unit
I/O refreshing
Di
Number of digits
First digit to convert
Rightmost 8 bits (0)
Unit number of Special I/O Unit
Desig-
nated
number
of words
read.
Unit number of Special I/O Unit
Desig-
nated
number of
words writ-
ten.
Section 3-19
Location
Execution
condition
Output
Required
Output
Required
Output
Required
Output
Required
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