CJ1W-NC234 Omron, CJ1W-NC234 Datasheet - Page 409

• Manufacturer Part Number: CJ1W-NC234
• Description: High Speed Pulse Train 2 Axes
• Manufacturer: Omron

Specifications of CJ1W-NC234

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

8-5 Data Read with IORD Instruction
CJ Position Control Units OPERATION MANUAL (CJ1W-NC214/234/414/434)
Reading Procedures
IORD Instruction Specification
Procedures
1. Set the IORD instruction.
2. Execute the data read.
This section explains the procedures for and the program example of reading data from the
PCU by using the IORD instruction.
You can use an IORD instruction to read the feedback counter present value and latch data
for each axis.
The following is the reading procedures when you use the IORD instruction.
Execute the IORD instruction.
This section explains the format of the IORD instruction. For details, refer to "Instructions
Reference Manual (W474)" for the CS/CJ-series PLC.
C:
W:
D:
the amount of the time that is necessary to transfer the data.
Operand
One IORD instruction transfers all specified data. Therefore, the ladder cycle time increases for
IORD
Precautions for Correct Use
W
C
D
Setting the PCU parameter type
PCU unit number of the transfer source and the number of words for the data to be
read
CPU first word
W
C
D
Set the parameter type on the PCU in hexadecimal.
Set the PCU unit number of the transfer source and the number of words for the data to
be read.
Set the CPU first word of the transfer destination.
@IORD
W
C
D
C: Control code
W: Transfer destination unit number and number of transfer words
D: Beginning word number of transfer destination
8-5 Data Read with IORD Instruction
Explanation
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