Hi,

There is  2 Tags per one contact in the picture

What is mean?

Thanks

Hello,

It is a "Positive Edge detection".

See the online help for information about both tags.

Best regards,

Wizard

PLC0709

Hi,

There is  2 Tags per one contact in the picture

What is mean?

Thanks

Hello,

There is a rising edge at operand "M30.2". The signal state of the previous scan is stored in the edge memory bit "M12.1". The positive signal edge is required each time the instruction executes.

When a positive signal edge is detected at M30.2, output is set to signal state "1" for one program cycle. In all other cases, the output has the signal state "0".

For detail information help on topic select instruction pressed "F1" .