Flashing LED program with switch

Hi,

I have bought a new 1212C plc.

My first program was a flashing led with a switch on input i0.0, a led on output q0.0, and in between a memory bit M255.5 for my 1Hz pulse.

I have activated the tinkmark for the clock memory byte but the bits are not starting to flashing.

What do i wrong.

when i remove the flashing bit, i can switch on and off the led.

grtz Frans   

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Split from Simulation of S7-1200.

Hi Jouke,

Many Thanks for the answer.

It works.

The problem was compile all. Without your help i had never found it, because your have only this choice when you click on the device. All the other compile buttons shows compile only software changes.

Again many thanks for yoyr answer. i was fighting already 3 days with this issue.

grtz frans

Your welcome,

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good luck with your project.