Hello, i am trying to program a cascade control on a Educational SKid, which controls the level of a tank as a Master, and a Flow Transmit as Slave.

I've been trying to follow this Application Example with CFC, but i am to newbie on CFC to really understand or to follow those directions.

Application - Cascade Control

I understand i need to insert  Level input on MV - MV output into Slave Sp and Flow input into Slave Input.. then Finally Slave Output into the Control Valve... however that's not doing anything, it doesn't control, how do i test PID?

im at a loss there, and  i tried doing double PB41 - (i think thats the only thing you need) and it's so random when i insert the Master Output into the Slave Setpoint.

Tank is 1 meter tall - Max flow is 6 m3/h.

 Does anyone have a example i can understand better, some YT videos are way more confusing that they should.

Or what would be the best aproach to do this?

Hello,

tnank you for your YT-video. Can you tell me a little bit about the test proess program?

Thanks