Panasonic Home Business > Industrial Devices > Automation Controls Top > Service & Support > Frequently Asked Questions

I downloaded a new program to the PLC and ran it, but after turning on the power, the count instruction counted up and normal control was not possible.

ID:
798
Issued:
Dec 25th, 2009
Updated:
May 17th, 2013

I downloaded a new program to the PLC and ran it, but after turning on the power, the count instruction counted up and normal control was not possible.

ANSWER
Since the counter instruction is normally set for holding, the elapsed value is stored during a power failure. The elapsed value status is held even if the power is turned off. Later, since the holding area content does not change even if a new program is downloaded, the elapsed value status will obviously not have changed.
In such a case, connect an R9013 (initial relay) to the counter instruction reset input and reset the elapsed value when turning on the power.
RELATED CATEGORIES

Did you solve your problems?

YES

NO

Search Keywords


If you still have problems with our products,

FEEL FREE TO CONTACT US

Return to top