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(2) Setting a local device in units of program

Use of the local device can be set for each program, and this function can reduce the scan time. Also, since the

area for saving and restoring data are not required for the programs not using a local device, the local device file

size can be reduced.

(a) Setting method

In addition to the setting in (1) in this section, click the "File Usability Setting" button, and specify the programs

that use the local devices.

Project window [Parameter] [PLC Parameter] [Program] [File Usability Setting]

(b) Precautions

Do not change or refer to the local device in a program for which the local device is set to "Not used". The

changed data are not held.

Program A

Program B

Program C

Program execution Local device file (.QDL)

Save/Restore

File size can be reduced since the saving or

restoring area for program B is not created.

For program A

For program C

Scan time decreases since saving/restoring

processing is not performed.

Mitsubishi L02CPU User Manual

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