With more than 30.000 high-quality spare parts, they can be sold immediately. Our large inventory allows us to quickly meet customer needs, thereby reducing downtime and protecting production schedules. Our timely delivery time provides you with security and save money.
The 6ES7326-2BF01-0AB0 operates as a high-safety component within the SIMATIC S7-300 automation platform and ET 200M distributed architecture, functioning exclusively in emergency shutdown systems as well as core safety-instrumented loops.
Active Dark-Period Pulse Self-Diagnostics
Flexible Single or Dual-Channel Configuration
Inductive Clamping & High-Voltage Isolation
The module occupies a double physical slot width of 80 mm on the standard DIN rail and configures 10 fail-safe digital output channels featuring advanced electrical isolation protection where each channel reliably carries a high-power load up to 24 Vdc at 2 A of current. To achieve the highest level of system safety integrity at the field control end, the module hardware integrates redundant dual-microprocessor cross-checking circuitry and adopts active dark-period pulse self-diagnostics at the bottom layer to capture abnormal symptoms such as external wiring short circuits, shorts-to-ground, wire breaks, or internal power barrier over-temperature conditions within a millisecond-level time window.
Once a safety interlock is triggered at the process site or an irreversible hardware fault is detected, this module forces all output channels into a de-energized absolute safe state through its integrated inductive voltage clamping protection unit, effectively preventing high reverse electromotive force from impacting the system core to secure automated shutdown safety in hazardous processing environments including flammable, explosive, and heavy machinery machining locations.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Siemens 6ES7326-2BF01-0AB0 Digital Output Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Oil & Gas
Acts as the core output for Emergency Shutdown (ESD) systems. In the event of severe pipeline leakage or overpressure conditions, it safely drives emergency shutdown pneumatic ball valves to isolate the oil or gas source.
Chemical Industry
Deployed in emergency cooling systems for highly exothermic, high-pressure chemical reactors. If a temperature runaway occurs, the F-DO module rapidly opens the safety solenoid valves for cooling media injection.
Nuclear Power
Deployed in auxiliary systems of standard conventional islands (rather than the reactor core), such as auxiliary steam emergency isolation valves and start-up interlock chains for emergency diesel generators.
Semiconductor
Monitors automatic supply gas cabinets (Gas Boxes) carrying highly toxic or flammable gases (e.g., Silane, Arsine) on the semiconductor facility side. It immediately shuts off source gas valves upon detecting ambient gas leaks.
Paper Industry
Interconnects with safety door switches and safety mats around highly hazardous areas of slitter rewinders. If an operator opens the safety guard, the F-DO immediately de-energizes the high-speed slitting knife drive contactors.
When using the 6ES7326-2BF01-0AB0 module, safety regulations must be strictly enforced across the three dimensions of mechanical assembly, electrical wiring, and software logic. Before hardware mounting, you must manually adjust the 10-bit DIP switches on the rear of the module according to the STEP 7 configuration to fix the unique F-target address. External wiring must make terminal connections through a standard 40-pin front connector, and bundling or laying its load wires together with conventional non-safety cables is strictly prohibited to prevent interference from inducing accidental channel passivation.
Meanwhile, you must ensure during wiring that the response time of the field solenoid valves is greater than the width of the integrated dark-period test pulse to prevent actuator shivering, and a dedicated passivation recovery acknowledgment logic must be programmed inside the PLC safety program after the field fault is resolved to reactivate the output loop, otherwise the channels will permanently remain locked in a de-energized safe state.
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.
It is an industrial-grade fail-safe digital output module belonging to the Siemens SIMATIC S7-300/ET 200M system used for safety-related control systems.
How to correctly install and connect the 6ES7326-2BF01-0AB0 module in an industrial field?
Mount it onto an S7-300 standard DIN rail or ET 200M rack and use a dedicated 40-pin front connector for external field wiring terminations.
What diagnostics and alarm functions are supported by 6ES7326-2BF01-0AB0?
It supports full diagnostic interrupts to detect external short circuits, wire breaks, ground faults, and internal component over-temperature events.
The 6ES7326-2BF01-0AB0 features 10 fail-safe digital output channels. What are the differences between its single-channel and dual-channel configurations
In a single-channel configuration, the 10 channels of the 6ES7326-2BF01-0AB0 can independently control 10 separate actuators. In a dual-channel configuration, the module pairs two channels together (e.g., controlling two redundant solenoid valves on the same safety valve) to provide higher redundancy and fault tolerance. During wiring, users must strictly follow the Siemens safety manual to ensure proper alignment of the PM-switching (P-switching and M-switching) loops, and verify that the load current does not exceed 2A per channel.
How much isolation test voltage can the 6ES7326-2BF01-0AB0 module withstand?
It features high-voltage isolation between internal backplane circuitry and external load channels, verified by a 500V DC insulation test.
Trusted by 5,000+ plants worldwide | Backed by our vast inventory of top-tier control parts, modules and cards, fast shipments are dispatched to cover your urgent needs. ABOUT US >>
Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
Videos
News
Applications
