[best] - Rslogix

: Specialized for the legacy PLC-5 series. It uses the .RSP file extension and is primarily used for maintaining older industrial installations.

But what exactly is RSLogix, why did it become so dominant, and where does it stand today? rslogix

Around 2012, Rockwell Automation began phasing out the "RSLogix" name for new development. The modern platform is called . : Specialized for the legacy PLC-5 series