PeeBeeAitch
Member
Hi there,
New to the forum, so please excuse ommissions, mistakes etc.
I'm trying to get the C251 (A/B Phase counter) on a FX2N operational - actually, I don't care if it is operational or not, I just want it to do something.
I have checked that the little LED's on the PLC are responding to encoder pulses (they flicker), so I assume the hardware is Ok. The A signal is wired to X0 and the B to X1.
I am using GX-IEC 6.01 and cannot get C251 to display any value while in monitor mode - or even on the HMI (E300).
I have also tried using X0 as a pure "contact" - ie: the rung looks like:
M8000 X0
--||----------||-------------------------------------(INC D??)
I am soon going to be bald from pulling my hair out, so please help me if anyone can.
Thanks
Paul
New to the forum, so please excuse ommissions, mistakes etc.
I'm trying to get the C251 (A/B Phase counter) on a FX2N operational - actually, I don't care if it is operational or not, I just want it to do something.
I have checked that the little LED's on the PLC are responding to encoder pulses (they flicker), so I assume the hardware is Ok. The A signal is wired to X0 and the B to X1.
I am using GX-IEC 6.01 and cannot get C251 to display any value while in monitor mode - or even on the HMI (E300).
I have also tried using X0 as a pure "contact" - ie: the rung looks like:
M8000 X0
--||----------||-------------------------------------(INC D??)
I am soon going to be bald from pulling my hair out, so please help me if anyone can.
Thanks
Paul