Yes, all Hardware Support Packages from Siemens are free of charge.
Look for the entry titled: "Hardware Support Package (HSP) for SIMATIC S7-1200 CPUs as of firmware version V4.3" Hsp0276 S71200 Cpu V4 3 Download
Standard and Fail-safe S7-1200 CPUs (e.g., CPU 1211C, 1212C, 1214C, 1215C, and 1217C). New Features in V4.3 Support Yes, all Hardware Support Packages from Siemens are
