CPU 1212FC DC/DC/DC

hi FpZa,

do you use any pulse generator? PTO1/PWM1 will use Q0.0 and Q0.1 if it is activated. Then it is not possible to use it for anything else.

hope this helps,

regards,

Either of the 1st 2 replies should prove out the Q0.0 and Q0.1 are working properly.

In the meantime, as already stated, open the hardware configuration of the PLC and look below in the bottom pane (expand it up into the working pane so you can work with it easily).

Locate the PTO / PWM options and click the ► button to expand the options.  Check for any enabled PTO/PWM outputs and turn them off.

Lastly, be sure and update the hardware configuration (see attached image for a way that always works).

FpZa

Hi,

i'm trying to use th 6 output ports that the 1212 has on it, all is fine except for the .0 and .1 outputs; even when i force the outputs directly both the output's led remains off and i don't have the expected 24v in output.

.2 .3 .4 and .5 work perfectly.