Siemens 3RK3141-2CD10 – DP/AS-Interface F-Link Safety Gateway | SIRIUS Safety Integrated Series
Engineering Background
The AS-Interface (AS-i) Safety at Work protocol was developed to simplify distributed safety wiring in industrial environments. The F-Link concept bridges AS-i safety slaves directly into Profibus DP networks, eliminating the need for a dedicated safety PLC at the field level and dramatically reducing cabinet footprint and commissioning time. Siemens introduced the 3RK3 series as part of the SIRIUS Safety Integrated platform to deliver certified, scalable safety gateway solutions for machine and process safety applications worldwide.
Product Positioning
The Siemens 3RK3141-2CD10 is a certified DP/AS-Interface F-Link gateway engineered for procurement engineers and system integrators who require a compact, standards-compliant safety gateway for SIL 3 / PL e machine safety and process safety applications. It connects up to 31 AS-i safety slaves to a Profibus DP master while simultaneously handling standard AS-i slaves on the same bus — making it the preferred single-gateway solution for mixed safety/standard topologies on Siemens S7-300, S7-400, and S7-1500 platforms.
Complete Technical Specifications
| Part Number / SKU | 3RK3141-2CD10 |
| Manufacturer | Siemens AG |
| Product Family | SIRIUS Safety Integrated – AS-Interface Safety at Work (3RK3 Series) |
| Function | DP/AS-Interface F-Link Gateway (Safety + Standard AS-i) |
| Fieldbus Interface (Upper) | Profibus DP slave, up to 12 Mbps |
| AS-i Interface (Lower) | AS-Interface V3.0 master — 31 safety slaves + 62 standard slaves (A/B addressing) |
| Safety Integrity Level | IEC 62061 SIL 3 / EN ISO 13849-1 PL e, Category 4 |
| Safety Protocol | AS-i Safety at Work (S@W) |
| Supply Voltage | AS-i bus powered — 26.5 V DC to 31.6 V DC via AS-i cable |
| Power Consumption | ≤ 200 mA from AS-i bus |
| Degree of Protection | IP20 |
| Ambient Temperature (Operation) | −25 °C to +60 °C |
| Mounting | DIN rail 35 mm |
| Dimensions (W × H × D) | 45 × 99 × 114.5 mm |
| Weight | approx. 320 g |
| Certifications | CE, UL, cUL, AS-i Safety at Work certified |
| GSD File | SIEM80C3.GSD (for STEP 7 / TIA Portal hardware configuration) |
| MLFB / Order Number | 3RK3141-2CD10 |
| Country of Origin | Germany |
| HS Code | 8536.49 |
Proven Application Environments
- Machine Safety: Emergency stop circuits, light curtain integration, and safety door monitoring via AS-i safety slaves connected to Profibus DP PLCs (S7-300 / S7-400 / S7-1500).
- Conveyor & Material Handling: Distributed E-stop and guard monitoring across long conveyor lines using single-cable AS-i topology.
- Automotive Assembly: Robot cell safety interlocking with mixed standard and safety AS-i devices on one gateway.
- Process Industry: SIL 2/3 safety loops in chemical and pharmaceutical plants where Profibus DP is the backbone fieldbus.
- Packaging Machinery: High-speed lines requiring Cat. 4 / PL e safety performance with minimal wiring complexity.
Engineering Advantages
- Single-gateway architecture: Handles both safety (F) and standard AS-i slaves simultaneously — no separate gateway required.
- Certified SIL 3 / PL e: Meets the highest machine and process safety integrity levels out of the box.
- Profibus DP slave integration: Seamlessly maps AS-i safety data into Profibus DP process image for S7 or third-party DP masters.
- Compact DIN-rail form factor: 45 mm wide — minimizes control cabinet space in dense panel layouts.
- AS-i bus powered: No separate 24 V DC supply required for the gateway itself, simplifying wiring.
- Diagnostic transparency: LED status indicators and Profibus DP diagnostic messages for rapid fault localization.
- SIRIUS ecosystem compatibility: Fully interoperable with SIRIUS 3SK, 3RK3, and third-party AS-i safety slaves.
System Architecture & Signal Flow
The 3RK3141-2CD10 operates as a Profibus DP slave on the upper network side and as an AS-i master on the lower field side. Safety-relevant signals from AS-i safety slaves (e.g., emergency stops, safety mats, light curtains) are transmitted via the AS-i Safety at Work protocol, validated internally by the gateway’s dual-channel safety logic, and then forwarded as safe process data to the Profibus DP master (e.g., Siemens S7-300/400 with CP 342-5 or integrated DP interface). Standard AS-i slaves share the same AS-i cable and are mapped to the standard process image. The gateway supports up to 31 safety slaves (addresses 1–31) and 62 standard slaves (A/B addressing), all on a single AS-i segment. Worst-case safety response time is ≤ 40 ms for a fully loaded segment, compliant with IEC 62061 SIL 3.
Sourcing & Quality Verification
- All units sourced from authorized Siemens distribution channels or verified surplus with full traceability documentation.
- Each module undergoes incoming inspection: visual check, label verification (MLFB, date code, country of origin), and functional power-on test where applicable.
- Original Siemens packaging, holographic labels, and serial number records provided upon request.
- Certificate of conformity and test reports available for OEM and EPC project requirements.
- Anti-counterfeit policy: Konmask.com does not knowingly source or sell counterfeit components. Any unit failing authentication is quarantined and not shipped.
Procurement Process
- Confirm part number: Verify 3RK3141-2CD10 against your BOM or Siemens MLFB catalog.
- Request quote: Contact us via support@konmask.com or +0086 19859288691 for volume pricing, lead time, and availability confirmation.
- Documentation package: Specify required documents (CoC, datasheet, test report) at time of order.
- Shipping: DHL / FedEx / UPS express available. Export documentation (commercial invoice, packing list, HS code 8536.49) prepared for customs clearance.
- Payment: T/T, PayPal, and credit card accepted. Net terms available for qualified accounts.
Technical FAQ
Q: Can the 3RK3141-2CD10 replace the 3RK3141-1CD10?
A: The 3RK3141-2CD10 is the enhanced variant supporting both safety and standard AS-i slaves on one gateway. The -1CD10 supports safety slaves only. Confirm your topology before substituting.
Q: Which Profibus DP masters are compatible?
A: Any Profibus DP V1 master is compatible. Siemens GSD file (SIEM80C3.GSD) is available for STEP 7 and TIA Portal hardware configuration.
Q: What is the maximum AS-i cable length?
A: Up to 100 m per segment without repeater; up to 300 m with AS-i repeaters (standard AS-i topology rules apply).
Q: Is firmware update required after installation?
A: The gateway is factory-configured. No firmware update is required for standard operation. Siemens SIMATIC PDM or AS-i Control Tools can be used for diagnostics and address assignment.
Q: What safety response time can be expected?
A: Worst-case safety response time is typically ≤ 40 ms for a fully loaded AS-i segment (31 safety slaves), compliant with IEC 62061 SIL 3 requirements.
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