Hi Nicky1905

The FM 451 is used in the SIMATIC S7-400 and use you can not use it alone 

https://w3.siemens.com/mcms/programmable-logic-controller/en/advanced-controller/s7-400/function-modules/FM451/Pages/Default.aspx

Rahaei

Hi Nicky1905

The FM 451 is used in the SIMATIC S7-400 and use you can not use it alone 

https://w3.siemens.com/mcms/programmable-logic-controller/en/advanced-controller/s7-400/function-modules/FM451/Pages/Default.aspx

 

 Yes, of course FM451 used with S7-400 CPU. I mean we shouldn't configure any control  like positioning inside FM451. We can only read position value from FM451 DB. Position control and further processing may be done in main CPU program. Yes, it's possible, I found out it.