Omron C200HX Operation Manual page 374

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Special I/O Unit Instructions

When the execution condition is OFF, IOWR(––) is not executed. When the

execution condition is ON, IOWR(––) transfers data from the words beginning at

D to the specified Special I/O Unit's memory. The destination information pro-

vides the node number of the Special I/O Unit and the number of words to be

written, as shown in the following diagram.

Digit 1: Node number of the Special I/O Unit (0 to F)

The control code (C) depends on the Special I/O Unit being specified. Refer to

the Unit's Operating Manual for details.

When IR 00000 goes from OFF to ON, the following instruction writes the con-

tents of the 10 words from DM 0100 through DM 0109 to the memory area of

Special I/O Unit number 2.

The last three digits of D (number of words specifier) isn't BCD or isn't

within the range of 001 through 128.

Indirectly addressed DM word is non-existent. (Content of DM word is

not BCD, or the DM area boundary has been exceeded.)

The destination Unit's unit number isn't 0 to F or it is mounted on a Slave

The instruction wasn't completed normally.

ON when the data was read successfully, otherwise OFF.

Digits 2 to 4: Number of words to write (001 to 128)

Address Instruction

Section 5-29

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