CiA 402 Change Position scaling

Hello,

we have an application using a hydraulic valve IAC FWA HDB20 communicating with CoE with a third party control. If I try to change the exponent of the position in the Mechanical Scaling, it always come back to -4 after leaving parameter mode. if I change to SoE or if I disable CiA402 Profile, I can change the exponent without any problem. Is this a behaviour of Cia402? Is there any work around to solve this situation?

Best reply by StephenO

When the drives are in CoE configuration, there are CiA402 standard objects that take precedence on the scaling.

You need to set CoE Objects 0x60A8, 0x60A9 and 0x60AA in order to specify your range. You can change them in the CoE tab of IO Engineering, or set them via startup parameter lists.

View original
6 replies