Delta AH500 Hardware Operation Manual page 518

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will be read or written is not composed of words, the local PLC will exchange bits with the remote PLC

selected, and the bits which are not involved in the data exchange will remain unchanged. For example, if

D0~D1 in the local PLC read M0~M19 in the remote PLC selected, the data read will be stored in

D0.0~D1.3, and D1.4~D1.5 will remain unchanged. As for AH500 advanced CPU series

(AHCPU501/511/521/531), users can select the register type according to the requirements.

Users can manage the items in the table by using the function buttons on the top.

Moving the item selected in the table upwards

Moving the item selected in the table downwards

Deleting the item selected in the table

Copying the item selected in the table, and automatically adding the item which is copied to

the bottom of the table

After the users create a data exchange table, they can select a mode in the Mode drop-down list box.

The execution of the data exchange is enabled or disabled by means of setting flags*

flags are set to ON, the execution of the data exchange will be enabled.

When the PLC runs, the data exchange is executed.

Always Enable The data exchange is executed whether the PLC runs or stops.

*1. The mode selected will be executed only if the Enable checkbox in the window used to set an item is selected.

*2. Please refer to section 11.3.3 for more information about setting flags.

C h a p t e r 11 C o n v e n i e n t F u n c t i o n s

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