Several security features help protect access to both the CPU and the control program:
Ã¢âÂ Every CPU provides password protection (Page 87) that allows you to configure accessto the CPU functions.
Ã¢âÂ You can use "know-how protection" (Page 89) to hide the code within a specific block.
Ã¢âÂ You can use copy protection (Page 90) to bind your program to a specific memory card orCPU.
New modules expand the power of the S7-1200 CPU and provide the flexibility to meet yourautomation needs:
Ã¢âÂ Industrial remote control communication modules: You can use these CPs ascommunication modules with the S7-1200 V4.1 CPU.
Ã¢âÂ Fail-safe CPUs and I/O: There are four fail-safe CPUs and three fail-safe signal modules(SM) in conjunction with the S7-1200 V4.1 or later release:
Ã¢â¬â CPU 1214FC DC/DC/DC
Ã¢â¬â CPU 1214FC DC/DC/RLY
Ã¢â¬â CPU 1215FC DC/DC/DC
Ã¢â¬â CPU 1215FC DC/DC/RLY
Ã¢â¬â SM 1226 F-DI 16 x 24 VDC
Ã¢â¬â SM 1226 F-DQ 4 x 24 VDC
Ã¢â¬â SM 1226 F-DQ 2 x Relay You can use the S7-1200 standard signal modules (SM), communication modules (CM),and signal boards (SB) in the same system with fail-safe SMs to complete yourapplication control functions that do not require a functional safety rating.