Omron CS1W-MC221 - 02-2008 Operation Manual page 243

Motion control units

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IOWR and IORD Specifications

Execution condition

Execution Timing for IORD

Transfer Time

Reading the X-axis Acceleration Time (500 [ms]) to D00100 to D00101.

Data that Is Read [DM]

Refer to the following diagram for the execution timing and processing method

of the IORD instruction.

Transfer data

IORD instruction

1. The CPU Unit performs a format check to see if the designations for the

IOWR instruction operands are correct. The Error Flag will be turned ON

and the IOWR instruction will not be executed if a designation is incorrect.

2. The MC Unit performs a data check to see if the MC Unit can process the

data designated with the operands. The Equals Flag will be turned ON if

the MC Unit can process the data. The Equals Flag will not be turned ON

and the IOWR instruction will not be executed if the MC Unit cannot pro-

cess the data.

3. The specified data is transferred from the MC Unit to the CPU Unit. The

Equals Flag will turn ON when the transfer has been completed.

Refer to Section 1-5 Specifications.

Set the X-axis acceleration time address to 4406.

(1136 Hex corresponds to 4406)

Set the source unit number (0) and a total of two

words to be transmitted.

Set the address first word of the destination to

store the acceleration time data.

OUT (Work bit)

Within one cycle

Data processing

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