6ES7326-1BK01-0AB0 SIEMENS Processor module

Description

6ES7326-1BK01-0AB0 SIEMENS Processor module

Product Dimensions：

Product Description

The Siemens 6ES7326-1BK01-0AB0 is a digital input module within the SIMATIC S7-300 range, specifically designed for functional safety applications. It is a failsafe (F-module) capable of processing safety-related signals up to SIL 3 according to IEC 61508 and PLe according to ISO 13849-1. This module features 24 digital inputs that can be configured for either single-channel or dual-channel evaluation. It is used in conjunction with S7-300F CPUs or ET 200M failsafe interface modules to monitor safety devices such as emergency stop buttons, light curtains, and safety switches.

Product Parameters

Supply Voltage: 24V DC Number of Inputs: 24 Digital Inputs Safety Integrity Level: SIL 3 Performance Level: PLe Input Current: 10 mA (per channel) Input Delay: 3.0 ms to 15.0 ms (configurable) Short-circuit Protection: Yes Galvanic Isolation: Yes, between backplane bus and inputs Dimensions: 80mm x 125mm x 120mm Weight: 442g

Advantages

The module provides a high density of safety inputs in a compact form factor, reducing the physical footprint required in the control cabinet. It features integrated diagnostic functions that can detect external wiring faults, such as cross-circuits or wire breaks, as well as internal hardware discrepancies. By using this module, engineers can replace traditional hard-wired safety relays with a software-based safety logic, which simplifies the wiring process, enhances system flexibility, and provides more detailed diagnostic information to the HMI or SCADA system.

Precautions

Correct functioning of the safety features requires the use of a 40-pin front connector, which must be ordered separately. For applications requiring SIL 3 or PLe, redundant wiring (2-channel) must be implemented according to the manufacturer’s safety manual. Ensure the power supply is within the permissible range of 20.4V to 28.8V DC to avoid module resets or hardware damage. Only qualified personnel should perform the safety configuration and commissioning, and a full safety function test must be conducted after any modification to the hardware or software.

Applications

This failsafe module is widely applied in the automotive industry for monitoring robot cells and assembly line safety gates. It is also a standard component in the chemical and oil and gas industries for Emergency Shutdown Systems (ESD) and Fire and Gas (F&G) monitoring. Other common applications include material handling systems with light curtains, heavy machinery with interlocked guards, and power plants where high-reliability monitoring of safety-critical sensors is required.

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