6ES7326-2BF01-0AB0

The Siemens 6ES7326-2BF01-0AB0 operates as a high-density SM 326 fail-safe digital output module tailored for the SIMATIC S7-300 controller family and ET 200M distributed I/O stations. This specific hardware component features a dual-slot width of 80 mm on the standard DIN rail and provides 10 isolated fail-safe digital output channels rated at 24 Vdc with a high-capacity current output of up to 2 A per channel. Built exclusively for safety-instrumented systems requiring high safety integrity levels like SIL 3 or PL e, it integrates redundant internal microprocessors and continuous dark-period pulse self-diagnostics to dynamically detect line faults including external short circuits, wire breaks, and ground leakage. The module communicates seamlessly with safety-related F-CPUs over standard PROFINET or PROFIBUS networks via the PROFIsafe layer protocol. It enforces strict electrical boundary separation by ensuring that the internal logic circuits and the 24 Vdc load output loops are electrically isolated up to 500 Vdc. Operating with a nominal backplane current draw of 100 mA and a typical full-load power loss of 12 W, this component requires a standard 40-pin front connector for robust field wiring termination inside automated emergency shutdown systems.