Hello,
I am using an AXC F 3152 with HW version 3 and FW version 2025.0.3 (25.0.3.103).
I loaded my project but when I try to Start the PLC, then I get the message (notification section of wbm) "2025-07-01 14:39:30PLC ManagerArp.Plc.Domain.Plc.Condition.Failed
Starting Plc is prevented by ‚Arp.Hardware.DeviceHmi‘ because of ‚Start/Stop switch‘
"
Any thoughts?
Thank you in advance.
My first (and only) thought is… is the switch set to Stop? 
BR
DivisionByZero
That was it! Thank you very much!