Bachmann SDI208 Safety Digital Input Module – MX Series
When a safety-critical machine loses its certified input monitoring, the consequences are immediate and severe: undetected sensor faults can bypass emergency-stop circuits, expose operators to hazardous motion, and trigger costly production shutdowns or regulatory non-compliance. The Bachmann SDI208 eliminates this risk by providing eight independently monitored, SIL 3 / PLe-rated digital input channels that continuously validate field device signals — ensuring your safety architecture never has a blind spot.
Within the Bachmann MX Series modular controller platform, the SDI208 occupies the critical role of certified safety input acquisition. It is fully integrated into Bachmann’s SolutionCenter engineering environment and complies with IEC 61508, EN ISO 13849-1, and IEC 62061 — standards that define the benchmark for functional safety in global industrial automation. From European automotive assembly lines to offshore energy platforms, the SDI208 is a trusted component wherever human safety and machine reliability must coexist.
Technical Specifications
- Model / SKU: SDI208
- Brand: Bachmann electronic GmbH
- Series: MX Series
- Number of Digital Input Channels: 8
- Safety Integrity Level: SIL 3 (IEC 61508)
- Performance Level: PLe (EN ISO 13849-1)
- Safety Category: Category 4
- Input Voltage: 24 V DC (nominal)
- Input Type: Single-channel and dual-channel (1oo1 / 1oo2) configurable
- Diagnostic Coverage: High (DC ≥ 99%)
- Response Time: Configurable, deterministic
- Communication: Integrated via MX backplane bus
- Standards Compliance: IEC 61508, IEC 62061, EN ISO 13849-1
- Operating Temperature: 0 °C to +55 °C
- Protection Class: IP20
- Mounting: MX Series rack / backplane
- Weight: Approx. 500 g
Note: Specifications are based on Bachmann official documentation. Always verify against the current datasheet for your application.
Key Features & Benefits
- SIL 3 / PLe Certified: Meets the highest functional safety requirements for machinery and process industries, reducing certification effort for your complete safety system.
- 8 Independent Safety Channels: Each channel is individually monitored with cross-fault detection, enabling flexible safety circuit topologies.
- Dual-Channel (1oo2) Support: Supports redundant sensor wiring for emergency-stop buttons, light curtains, and safety gates — maximizing fault tolerance.
- High Diagnostic Coverage (DC ≥ 99%): Continuous self-diagnostics detect short circuits, wire breaks, and cross-channel faults before they become safety incidents.
- Seamless MX Platform Integration: Plugs directly into the Bachmann MX backplane — no additional safety gateway or protocol converter required.
- Deterministic Response Time: Configurable cycle times ensure predictable safety reaction within your machine’s required stopping performance (T2).
- SolutionCenter Engineering: Fully programmed and parameterized within Bachmann’s IEC 61131-3 engineering environment, including certified safety function blocks.
- Compact Modular Design: Saves panel space while maintaining full safety functionality in demanding industrial environments.
Industry & Equipment Applications
- Wind Energy: Safety monitoring of pitch control limits, nacelle access doors, and emergency-stop circuits on wind turbines.
- Automotive Manufacturing: Guarding robot cells, press safety interlocks, and conveyor emergency stops on assembly lines.
- Oil & Gas / Offshore: SIL 3 process shutdown inputs for valve position feedback and pressure switch monitoring.
- Marine & Shipbuilding: Engine room safety systems and dynamic positioning safety input acquisition.
- Power Generation: Turbine protection systems requiring certified digital input monitoring.
- General Machinery (CE/Machinery Directive): Any machine requiring Category 4 / PLe safety input circuits per EN ISO 13849-1.
System Integration & Compatible Parts
The SDI208 is designed for use within the Bachmann MX Series modular controller platform. Compatible and complementary components include:
- Bachmann MX207 / MX213 / MX220 — MX Series CPU modules
- Bachmann SDO204 — Safety Digital Output Module (paired with SDI208 for complete safety I/O)
- Bachmann DIO216 — Standard digital I/O for non-safety channels in the same rack
- Bachmann MX Series Power Supply Modules — Rack power for the complete MX system
- Bachmann SolutionCenter — Engineering software for configuration, programming, and safety validation
Contact Konmask.com to confirm compatibility with your specific MX rack configuration and firmware version.
Our Quality Assurance Process
- Authenticity Verification: Every Bachmann module sourced through our supply chain is verified against manufacturer serial number records and labeling standards.
- Functional Inspection: Modules undergo visual inspection and, where applicable, power-on testing prior to shipment.
- Secure Packaging: ESD-safe packaging with anti-static bags and foam inserts protects sensitive electronics during international transit.
- Documentation: Original manufacturer documentation and certificates of conformity provided upon request.
- Traceability: Full order and shipment traceability records maintained for B2B compliance requirements.
How to Order
- Submit an inquiry via the “Get a Quote” button or email support@konmask.com.
- Provide your required quantity, delivery timeline, and destination country.
- Our technical team will confirm availability, lead time, and pricing within 24 business hours.
- Upon agreement, we issue a proforma invoice and arrange secure international shipping (DHL / FedEx / sea freight).
- Post-shipment tracking and documentation (commercial invoice, packing list, COO) provided for customs clearance.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on PLC, DCS, safety, and motion control components — not a generalist marketplace.
- Global B2B Supply: Serving engineering firms, system integrators, and MRO procurement teams across Europe, Asia, the Middle East, and the Americas.
- Fast Inquiry Response: Dedicated technical sales team responds within 24 hours with accurate availability and lead time.
- Competitive Pricing: Direct sourcing relationships enable competitive pricing on both new and refurbished Bachmann modules.
- Export Compliance: Experienced in international trade documentation, export licensing, and customs requirements.
Frequently Asked Questions
- Q: Is the Bachmann SDI208 still in production?
- A: Please contact us for current availability status. We supply both new stock and tested refurbished units depending on market availability.
- Q: Can the SDI208 be used as a standalone safety relay replacement?
- A: No. The SDI208 is a backplane-mounted module that requires a Bachmann MX Series rack and CPU. It is not a standalone safety relay.
- Q: What safety standards does the SDI208 comply with?
- A: The SDI208 is certified to IEC 61508 (SIL 3), EN ISO 13849-1 (PLe, Category 4), and IEC 62061.
- Q: Do you provide the Bachmann SolutionCenter software with the module?
- A: Software licensing is managed by Bachmann electronic GmbH. We can advise on procurement; please inquire for details.
- Q: What is the typical lead time for the SDI208?
- A: Lead time varies by stock availability. Standard inquiries are responded to within 24 business hours with confirmed lead time.
- Q: Can you supply multiple SDI208 units for a large project?
- A: Yes. We handle project-quantity orders. Please submit your BOM or project requirements for a consolidated quotation.
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