Description The Beckhoff EL6900 is a TwinSAFE logic terminal designed to coordinate and process safety-relevant signals within EtherCAT-based safety systems. It supports up to 128 FSoE communication connections, enabling safe interaction between TwinSAFE input and output terminals. The EL6900 provides certified safety logic execution using parameterizable watchdog and fault response functions for SIL3/PL e applications. Technical Specifications Condition New/Never Used Surplus Brand Beckhoff Category Safety Logic Terminal Part Number EL6900 Subcategory TwinSAFE EtherCAT Terminals Cycle Time Approx. 500 µs (project dependent) Fault Response Time ≤ parameterized watchdog time Current Consumption (E-bus) Typical 188 mA Installation Position Horizontal Safety Standards SIL3 (EN 61508), PL e Cat. 4 (ISO 13849-1:2008) IP Rating IP20 Dimensions (W × H × D) 12 × 100 × 68 mm Communication Protocol FSoE (FailSafe over EtherCAT) Max Safe Connections 128 devices Function Block Types Boolean, muting, and certified safety logic blocks Information About EL6900 The EL6900 is a dedicated safety controller module within the TwinSAFE system, engineered for Boolean-based safety logic using certified function blocks. Its construction features a compact IP20 housing with a horizontal installation orientation suited for standard EtherCAT terminal racks. The device integrates seamlessly with FSoE-capable components, enabling up to 128 safe communication links for distributed safety architectures. Typical applications include muting, interlocking, emergency-stop logic, and other SIL3/PL e safety functions requiring configurable logic processing and backup/restore capabilities. Key Features TwinSAFE logic terminal: Designed for processing safety-related Boolean logic. Supports up to 128 FSoE connections: Enables communication with extensive safe I/O networks. Certified safety performance: Complies with SIL3 (EN 61508) and PL e Cat. 4 (ISO 13849-1). Fast logic cycle: Operates with cycle times around 500 µs depending on project scope. Backup/restore capability: Simplifies controller replacement during service operations. Parameterizable watchdog: Allows configurable fault response times. Compact terminal format: 12 mm width for space-efficient EtherCAT installations. IP20 protection: Suitable for installation within protected control cabinets. The EL6900 delivers the reliability and precision required for centralized and distributed safety logic control in EtherCAT-based automation systems.
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