Hello!

I have an application where I will use:

1. 1 Axes with S120 + Absolute Encoder
2. 1 Axes with S120 + Absolute Encoder
3. 1 Absolute Master encoder mount on other part of the machine
4. 1 PLC that gives the speed reference

My doubt is that the two axes will have the same speed reference, the absolute encoder will turn at the same speed, but both axes have to maintain a constant angular difference for the absolute master encoder, e.g., If master encoder is at 200 degrees, one axe has to be at 180 degrees and the other at 160 degrees. When they start to turn, they have to maintain this difference.

Can I do this with S7-1500 Tecnhology Object? Is there any application example?

Thanks,

Bruno

Bruno,

you can perform the relative gearing function between the master (encoder) and slave (axis). I can see no restriction about it.

Truly speacking I've used the technology CPU with the old S7-300 and these functions was available and I'm supposing the same and more for the new generation's CPU

pigroplc

Hello,

Technology Objects of the SIMATIC S7-1500(T)

https://support.industry.siemens.com/cs/br/pt/view/109743134/en

SIMATIC S7-1500 / S7-1500T: Standard application axis control

https://support.industry.siemens.com/cs/br/pt/view/109749348/en

Thanks for the inputs. It have guided me to the right path.