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7-412

• The specified slot is empty or the target module is during online module change.

• The specified value (n) is not the start I/O number.

• The specified value (n) is within the allowable setting range, but cannot be set in the

I/O assignment setting screen of the PLC parameter dialog box.

Operation Error

(1) In any of the following cases, an operation error occurs, the error flag (SM0) turns on, and an

error code is stored into SD0.

• The target module cannot be communicated due to a failure. (Error code: 2110)

• Devices by 10 words starting from the device specified by exceed the device range.

(Error code: 4101)

• The specified value (n) is except 0 to FF

and 3E0 to 3E3

. (Universal model QCPU)

(Error code: 4101)

• The specified value (n) is except 0 to FF

and 3E0

. (LCPU)

(Error code: 4101)

Program Example

(1) The following program stores the model name of a module having the start I/O number

0020

H in the area starting from the device specified by when X0 is turned on.

[Ladder Mode] [List Mode]

-1

b15 to b8 b7 to b0

00H

00H 00H

00H

Stores -1.

Stores 00

Indicates that the model

name is not stored.

○

Nine words are used.

Step Instruction Device

Mitsubishi MELSEC Q Series Programming Manual

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