Siemens 6ES7677-2SB42-0GB0 ET 200SP Open Controller CPU1515SP PC2 F Fail-Safe Logic Controller

The Siemens 6ES7677-2SB42-0GB0 is a SIMATIC ET 200SP Open Controller, CPU1515SP PC2 F, running the S7-1500 Failsafe Software Controller CPU 1505SP F V2x on the same Intel Atom E3940 hardware as the standard CPU1515SP PC2. The fail-safe firmware raises max. active power input to 55 W and program work memory to 1.5 Mbyte, allowing up to 8 nesting levels for F-blocks in the safety program.

Technical Specifications

Certifications & Standards

• CE
• CSA
• cULus
• FM
• RCM

Selection Notes

Choose the 6ES7677-2SB42-0GB0 over the non-safety -0GB0 when the machine needs an F-CPU for certified safety functions (E-stop chains, guard interlocks) alongside the standard PLC program on one controller; its 1.5 Mbyte program memory sits between the 1 Mbyte non-safety CPU and the larger V3x variants, and the extra 12 W of active power input reflects the failsafe firmware's added processing load.

Applications

Suits cells that need SIL/PL-rated safety logic - light curtains, guard doors, emergency stops - executed on the same PC-form-factor controller as the standard machine logic, instead of a separate safety relay or safety PLC.