Modicon Unity 7.0 Scaling block question

[Strokur]

Has anybody ever ran into a scaling block that throws the in_min = in_max status bit (bit 7, 16#0080)?

I've triple checked my parameters and they're definitely not equal. I've searched the project for any possible duplicate writes or any values being overwritten but nowhere to be found.

I am writing from one of our Red Lion HMIs to our PLC. I created one instance just before this one, with identical properties and procedure and it works fine. For some reason second time around it's not working.

Any thoughts or ideas?

Phil

 

[Strokur]

Disregard, solved.

Turns out I didn't pay close enough attention to how .Para_SCALING types stored their parameters. I chose a register too close, thought I was clear

 

[GeoffC]

You do know that Unity is a tag based system and you do not need to set register addresses. The only time I would set a register address to a tag is when I need to access that tag from SCADA (if using OFS then don't even need to do that)

 

[Strokur]

Yes, but upon reset those values won't be saved. And we heavily use the CitectSCADA interface so, I don't think I'll ever get away from it here ha.