Hardware interrupt on S7-300 PLC

Hello all,

I have a Siemens S7-300 PLC and would like to know how to use the hardware interrupt.

For example, I have a programming running...and when an input occured, i.e. I0.0 goes true, I want the program to stop where it is, go to a hardware interrupt routine, does whatever it does, i.e. turns on Q0.0, and contine where it left off.

TIA!

That's simple!

There are a few OB's (Organisation Blocks) which will react to such conditions (OB80-87). Simply program the right OB to do the trick. If the right OB is present, you get the result you describe. If it isn't the PLC just goes to STOP-mode. Check the manuals (on- or off-line).

Thanks for the info