A spreadsheet simulation of a 1956 6-floor Otis elevator, which used relays and contactors, no PLCs! Save this file before you open it, otherwise the default formula values will be lost and macros will not work!
PLC brand comparison chart. Warning: Subjective, and does not attempt to be 100% correct.
Read this before you start with VBS - for WinCC Flex or any other program that uses VBS.