The 6ES7326-1RF01-0AB0 (6ES7326-1RF01-0AB0) is a high-integrity, fail-safe digital input module designed for the SIMATIC S7-300 and ET 200M systems. This module is specifically engineered for use in "F-Systems" (Safety Integrated), supporting NAMUR sensor inputs for hazardous or safety-critical environments. It meets the most stringent global safety standards, including SIL 3 (IEC 61508) and PLe (ISO 13849). By monitoring for wire breaks and short circuits at the input level, the SM 326 ensures that emergency shutdowns and critical interlocks are executed with absolute reliability.
| Feature | Technical Data |
| Manufacturer | Siemens |
| Model Number | 6ES7326-1RF01-0AB0 |
| Input Type | 8 Digital Inputs (NAMUR) |
| Safety Integrity | SIL 3 / PLe / Category 4 |
| Supply Voltage | 24 V DC (Range: 20.4 V to 28.8 V) |
| Input Voltage | 8.2 V DC (NAMUR standard) |
| Connection Type | 1x 40-pin Front Connector |
| Diagnostics | Wire break, Short circuit, Internal fault detection |
| Isolation | Potential separation between channels and backplane |
| Dimensions (W x H x D) | 80 mm x 125 mm x 120 mm |
| Net Weight | 0.56 kg (Approx. 1.23 lbs) |
| Product Phase | Phase-Out (Legacy Support available) |
| ECCN Regulation | EAR99 |
The 6ES7326-1RF01-0AB0 is optimized for chemical, oil, and gas applications where NAMUR sensors (proximity or switch) are standard. Because it is an "F-module," it performs continuous self-tests of its internal circuitry. In the event of an detected discrepancy or field-side fault, the module transitions to a safe state, effectively de-energizing its associated safety logic. Its 80mm double-width housing is necessary to accommodate the redundant safety architecture and diagnostic hardware required for Category 4 operation.
What is a NAMUR input in the context of this module?
NAMUR inputs (per DIN EN 60947-5-6) allow the module to distinguish between four distinct states: Open circuit, Closed circuit, Wire break (low current), and Short circuit (high current). This is essential for safety systems to identify a "failed" sensor versus a "triggered" sensor.
Can I use this module with a standard S7-300 CPU?
The hardware will fit in a standard rack, but to utilize the fail-safe features, you must use a "Fail-Safe" CPU (e.g., CPU 315F, 317F) and configure the system using the S7 Distributed Safety or Safety Advanced software package.
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Returns & Warranty
Manufacturer: Siemens
Product No.: 6ES7326-1RF01-0AB0
Country of origin:Germany
Product Type: Fail-Safe Digital Input Module
Barcode: 85389091
Payment: T/T, Western Union
Weight: 560g
Dimensions: 8.00cm x 12.00cm x 12.50cm
Shipping port: Xiamen
Warranty: 12 months
The 6ES7326-1RF01-0AB0 (6ES7326-1RF01-0AB0) is a high-integrity, fail-safe digital input module designed for the SIMATIC S7-300 and ET 200M systems. This module is specifically engineered for use in "F-Systems" (Safety Integrated), supporting NAMUR sensor inputs for hazardous or safety-critical environments. It meets the most stringent global safety standards, including SIL 3 (IEC 61508) and PLe (ISO 13849). By monitoring for wire breaks and short circuits at the input level, the SM 326 ensures that emergency shutdowns and critical interlocks are executed with absolute reliability.
| Feature | Technical Data |
| Manufacturer | Siemens |
| Model Number | 6ES7326-1RF01-0AB0 |
| Input Type | 8 Digital Inputs (NAMUR) |
| Safety Integrity | SIL 3 / PLe / Category 4 |
| Supply Voltage | 24 V DC (Range: 20.4 V to 28.8 V) |
| Input Voltage | 8.2 V DC (NAMUR standard) |
| Connection Type | 1x 40-pin Front Connector |
| Diagnostics | Wire break, Short circuit, Internal fault detection |
| Isolation | Potential separation between channels and backplane |
| Dimensions (W x H x D) | 80 mm x 125 mm x 120 mm |
| Net Weight | 0.56 kg (Approx. 1.23 lbs) |
| Product Phase | Phase-Out (Legacy Support available) |
| ECCN Regulation | EAR99 |
The 6ES7326-1RF01-0AB0 is optimized for chemical, oil, and gas applications where NAMUR sensors (proximity or switch) are standard. Because it is an "F-module," it performs continuous self-tests of its internal circuitry. In the event of an detected discrepancy or field-side fault, the module transitions to a safe state, effectively de-energizing its associated safety logic. Its 80mm double-width housing is necessary to accommodate the redundant safety architecture and diagnostic hardware required for Category 4 operation.
What is a NAMUR input in the context of this module?
NAMUR inputs (per DIN EN 60947-5-6) allow the module to distinguish between four distinct states: Open circuit, Closed circuit, Wire break (low current), and Short circuit (high current). This is essential for safety systems to identify a "failed" sensor versus a "triggered" sensor.
Can I use this module with a standard S7-300 CPU?
The hardware will fit in a standard rack, but to utilize the fail-safe features, you must use a "Fail-Safe" CPU (e.g., CPU 315F, 317F) and configure the system using the S7 Distributed Safety or Safety Advanced software package.
| Product Image | Model Number / Title | Condition | Availability | Action |
|---|---|---|---|---|
|
GE Fanuc IC693MDL655H Series 90-30 32-Point DC Positive/Negative Logic Input Module | Original New | In Stock | View Details |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
Greyish White
|
| Country of origin |
Germany
|
| Power source |
DC Power
|
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