Languages available in all versions
Structured Text (ST)
Graphical Function Sequencing (CFS)
Functional Block Diagram (FBD)
Ladder Diagram (LD)
Continuous Function Graph (CFG)
Lite Version
Free for up to 320 local I/O points and 1 hour of runtime
Basic Version
Bus expansion support
Support for interfaces with PROFIBUS
Support for up to 2048 local I/O points
Professional Version
Bus expansion support
Bus expansion redundancy support
Ethernet expansion support
Ethernet expansion redundancy support
Support for interfaces with PROFIBUS
Support for interface redundancy with PROFIBUS
No limit on the number of local I/O points
Advanced Version
Bus expansion support
Bus expansion redundancy support
Ethernet expansion support
Ethernet expansion redundancy support
Support for interfaces with PROFIBUS
Support for interface redundancy with PROFIBUS
Half-cluster redundancy support
No limit on the number of local I/O points