Omron CP - PROGRAMMING MANUAL 05-2007 Programming Manual page 828

Basic I/O Unit Instructions
Operand Specifications
Description
S+1
Area
CIO Area
Work Area
Holding Bit Area
Auxiliary Bit Area
Timer Area
Counter Area
DM Area
Indirect DM addresses
in binary
Indirect DM addresses
in BCD
Constants
Data Registers
Index Registers
Indirect addressing
using Index Registers
IORD(222) reads the number of words designated in S+1 from the memory
area of the Special I/O Unit or CPU Bus Unit whose unit number is designated
by S and outputs the data to D. Refer to the operation manual of the Special I/
O Unit or CPU Bus Unit from which data is being read for specific details for
each Unit.
S
S+1
Unit number of Special I/O Unit
or CPU Bus Unit
S
S+1: Leftmost 4 digits
S: Rightmost 4 digits
C
CIO 0 to CIO 0 to
CIO 6143 CIO 6142
W0 to W511 W0 to W510
H0 to H511 H0 to H510
A0 to A959 A0 to A958
T0000 to T4095 T0000 to T4094
C0000 to C4095 C0000 to C4094
D0 to D32767 D0 to D32766
@ D0 to @ D32767
*D0 to *D32767
#0000 to #FFFF Specified values
(binary) only
DR0 to DR15 ---
---
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
Desig-
nated
number
of words
read.
Section 3-22
S D
CIO 0 to
CIO 6143
W0 to W511
H0 to H511
A448 to A959
T0000 to T4095
C0000 to C4095
D0 to D32767
---
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