sparkytex
Lifetime Supporting Member
Hey guys,
Normally I have an add in instruction that does this for me but the version of RSLogix I have (borrowed laptop) doesn’t have AOI’s so I have to do it old school. I need to scale a 4-20 mA input to 0-3173. I have the analog input selected as Eng Units so it’s changed the raw data to 4000-20000.
I can’t for the life of me find my old books that show me the formula on how to scales 4 mA to 0 and 20 mA to 3173 using the 4000-20000 Eu. Can someone help me remember the formula using the CPT function to achieve this please?
Thanks in advance.
- Tex
Normally I have an add in instruction that does this for me but the version of RSLogix I have (borrowed laptop) doesn’t have AOI’s so I have to do it old school. I need to scale a 4-20 mA input to 0-3173. I have the analog input selected as Eng Units so it’s changed the raw data to 4000-20000.
I can’t for the life of me find my old books that show me the formula on how to scales 4 mA to 0 and 20 mA to 3173 using the 4000-20000 Eu. Can someone help me remember the formula using the CPT function to achieve this please?
Thanks in advance.
- Tex