Omron CS1W-MCH71 -, Руководство по эксплуатации

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IORD Instruction to Transfer Data
Section 5-3
5-3 IORD Instruction to Transfer Data
5-3-1 Overview
Position data, system variables, system parameters, and servo parameters
can be read by executing the CPU Unit’s IORD instruction.
Procedure for Reading Data
5-3-2 IORD: Intelligent I/O Read
0000 Hex
27FF Hex
IORD
3000 Hex
33FF Hex
5000 Hex
5FFF Hex
7000 Hex
78FF Hex
CPU Unit
[Ladder program]
C: Control code
S: Transfer source unit No.
and No. of read words
D: Transfer destination
first word No.
Data
MC Unit
Address Internal Memory Area
Position data
System variable
System parameters
Servo parameters
Note: To read servo parameters, it is necessary to
specify the servo parameter axis in advance.
1) IORD Instruction Setting
C: Indicates the first address of MC Unit memory area
S: Specifies total No. of data words and MC Unit unit No. to read
D: First word No. of the CPU Unit memory area for storing the read data
2) Data Reading
Execute the IORD instruction
IORD @IORD
C C
W W
S S