CJ1W-NC414 Omron, CJ1W-NC414 Datasheet - Page 408

• Manufacturer Part Number: CJ1W-NC414
• Description: High Speed Pulse Train 4 Axes
• Manufacturer: Omron

Specifications of CJ1W-NC414

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

8
8-4 Data Write with IOWR Instruction
8-35
You can use the IOWR instruction in the interrupt task. Accordingly, you can execute the high-
speed response processing of specific I/O by interrupting.
However, in such a case, always set to prohibit the cyclic refresh with the Special I/O Unit
(1: Disabled) in the Special I/O Unit cyclic refresh setting under the PLC Setup.
If you execute one of 2 below in an interrupt task when you set to perform a cyclic refresh with
the Special I/O Unit (0: Enabled), it results in multiple refreshing and a non-fatal error occurs,
then the interrupt task error flag (A402.13) turns ON.
You cannot write any data when the PCU is busy. Therefore, use = flag to configure a self-holding
If you place the Condition Flags after a different instruction, the Condition Flags change according
When you execute the IOWR instruction, the execution result is reflected in the Condition Flags.
The = flag turns ON when the reading process is completed. Input Condition Flags, such as = flag,
based on output branching from the same input condition as the IOWR instruction.
circuit so that you execute the instruction in every cycle until you can start writing the data.
Self-hold at contact A when the input conditions are satisfied. The IOWR instruction is executed
in every cycle until = flag turns ON. Self-holding is released when = flag turns ON and contact B
turns ON upon completion of the writing process.
to the execution result of the instruction. Be sure to place the Condition Flags immediately after
the IOWR instruction.
instructions.
When you read data from or write data to the Memory area of the same Special I/O Unit with the
IORD or IOWR instructions.
When you execute an I/O refresh on the same Special I/O Unit with the IORF or FIORF
Precautions for Correct Use
Reference
CJ Position Control Units OPERATION MANUAL (CJ1W-NC214/234/414/434)