Siemens 6ES7 326-1BK02-0AB0 Digital Output Module

Siemens 6ES7 326-1BK02-0AB0 is a SIMATIC S7-300 SM 326 F digital input module with 24 DC 24 V inputs (24xDC24V), designed for safety‑related automation in S7‑300 systems and for integration into the standard I/O bus. It is described as a fail‑safe digital input module with safety integration and a diagnostic interrupt, enabling rapid fault signaling to the controller. The 24 input channels accept 24 V DC signals, and the module carries a temperature rating up to 40°C (temperature code T5), expanding its suitability for industrial environments. Typical applications include monitoring sensors, switches, and other 24 V DC digital signals in safety‑aware automation architectures.