IEC Structured Text (ST) is very similar to Pascal (you might say it's strongly inspired by it) and is available on many PLCs as a more powerful alternative to

IEC Structured Text (ST) is very similar to Pascal (you might say it's strongly inspired by it) and is available on many PLCs as a more powerful alternative to the non-programmer-friendly graphical programming systems like Ladder Logic and Function Block Diagram. A fair bit of industrial automation is done using ST.