PLC-5 scale commands?

[Matthias von Zorn]

Am I just missing something, or is there no scaling commands in RSLogix 5? Im using a PLC-5/40 processor. Thanks

Matt

 

[JesperMP]

No you are not missing anything.

SCL and SCP was added to the SLC instruction set to make up for the "missing" onboard scaling on the analog input/output cards.
But especially SCP is useful in many other situations than just analog i/o scaling.

You have to adapt a CPT formula yourself.

 

[Tom Jenkins]

Try these links:

http://www.plctalk.net/qanda/showthread.php?s=&threadid=7636&highlight=SCALING

http://www.plctalk.net/qanda/showthread.php?s=&threadid=6974&highlight=SCALING

 

[Matthias von Zorn]

Thanks for the links. Its no problem to use the CPT function, just thought I might be missing a SCL command or something similar. Thanks again.