BIHL+WIEDEMANN BWU1569 AS-Interface Gateway Stainless Steel | Replacement, Equivalent & Selection Guide
The BIHL+WIEDEMANN BWU1569 is an industrial-grade AS-Interface (AS-i) gateway housed in a robust stainless steel enclosure rated IP67. Designed for demanding environments in food & beverage, chemical, and outdoor automation, it bridges AS-i slave networks to higher-level fieldbus or Ethernet systems. This page provides full technical specifications, compatible replacement models, application guidance, and sourcing information to help engineers and procurement teams make confident decisions.
Technical Specifications
| Part Number | BWU1569 |
| Manufacturer | BIHL+WIEDEMANN GmbH |
| Product Series | AS-Interface Gateway / Master |
| Enclosure Material | Stainless Steel |
| Protection Rating | IP67 |
| AS-i Masters | 2 (dual master) |
| Max. AS-i Slaves | Up to 62 per master (124 total) |
| Supply Voltage | 29.5–31.6 V DC (via AS-i power supply) |
| Weight | 1,780 g |
| Certifications | CE, UL (refer to datasheet) |
| Operating Temperature | -25 °C to +70 °C |
Compatible Replacement & Equivalent Models
The following models are functionally compatible or serve as direct/near-direct replacements for the BWU1569. Always verify fieldbus protocol, slave count, and enclosure rating before substituting.
| Model | Brand | Notes |
|---|---|---|
| BWU1568 | BIHL+WIEDEMANN | Plastic enclosure variant; same AS-i master functionality |
| BWU2797 | BIHL+WIEDEMANN | Upgraded firmware / extended diagnostics |
| BWU3924 | BIHL+WIEDEMANN | EtherNet/IP variant with stainless steel housing |
| VBG-PB-K20-D | Murrelektronik | PROFIBUS gateway, similar IP67 stainless housing |
| AC1365 | Siemens | AS-i master module for S7 systems; rack-mount form factor |
Contact Konmask.com for cross-reference verification before ordering a replacement.
Why Choose the Original BWU1569
- Stainless steel IP67 housing — withstands washdowns, corrosive atmospheres, and outdoor exposure
- Dual AS-i master — manages up to 124 slaves on a single gateway, reducing panel space and wiring cost
- Proven BIHL+WIEDEMANN reliability — 30+ years of AS-Interface expertise, widely adopted in European and global automation
- Integrated safety monitoring — supports AS-i Safety at Work (SaW) slaves for SIL 2 / PLd applications
- Broad fieldbus compatibility — available in PROFIBUS, PROFINET, EtherNet/IP, and Modbus TCP variants within the BWU series
Typical Applications
- Food & beverage production lines requiring hygienic stainless steel enclosures
- Chemical and pharmaceutical plants with corrosive or washdown environments
- Outdoor conveyor and material handling systems
- Water/wastewater treatment automation
- Machine safety integration with AS-i Safety at Work slaves
System Compatibility
The BWU1569 integrates with major PLC and DCS platforms via its fieldbus interface. Confirmed compatible systems include:
- Siemens SIMATIC S7-300 / S7-400 / S7-1500 (via PROFIBUS DP or PROFINET)
- Rockwell Allen-Bradley ControlLogix / CompactLogix (via EtherNet/IP variant)
- Schneider Electric Modicon M340 / M580 (via Modbus TCP or PROFIBUS)
- Beckhoff TwinCAT (EtherCAT bridge or PROFIBUS)
- ABB AC500 / 800xA (PROFIBUS DP)
Verify the exact fieldbus suffix of your BWU1569 unit against your PLC’s communication module before installation.
Selection Guide
Use the criteria below to confirm the BWU1569 is the right model for your project, or to identify the correct variant:
- Enclosure requirement: Stainless steel IP67 → BWU1569 ✓ | Plastic IP20 → BWU1568
- Slave count: ≤62 slaves → single master; 63–124 slaves → dual master (BWU1569 supports both)
- Fieldbus protocol: Confirm suffix (e.g., -PB for PROFIBUS, -PN for PROFINET, -EI for EtherNet/IP)
- Safety requirement: SIL 2 / PLd → ensure AS-i Safety at Work support is enabled in firmware
- Power supply: Dedicated AS-i 30 V DC power supply required; not included
Quality Assurance & Sourcing
Konmask.com sources the BWU1569 and all BIHL+WIEDEMANN products through verified industrial distribution channels. Every unit undergoes:
- Visual and label inspection against OEM specifications
- Firmware version verification where applicable
- Secure anti-static packaging for international shipment
We supply new original, factory-refurbished, and tested surplus units. Lead times and availability are confirmed at time of order. Contact us for volume pricing and expedited sourcing.
How to Order
- Confirm your exact part number: BWU1569 (include fieldbus suffix if known)
- Specify quantity and required delivery timeline
- Email support@konmask.com or call +0086 19859288691
- Receive quotation within 1 business day
- Payment via T/T, PayPal, or trade terms for qualified accounts
Replacement & Compatibility FAQ
Q: Can the BWU1569 replace a BWU1568 directly?
A: Functionally yes — both are dual AS-i masters with the same protocol support. The key difference is the enclosure: BWU1569 is stainless steel IP67; BWU1568 is plastic. Confirm mounting dimensions before swapping.
Q: Is the BWU1569 compatible with AS-i Safety at Work slaves?
A: Yes, provided the firmware version supports SaW. Verify the firmware revision on the unit label or contact BIHL+WIEDEMANN for confirmation.
Q: What fieldbus variants are available?
A: The BWU series covers PROFIBUS DP, PROFINET IO, EtherNet/IP, Modbus TCP, and DeviceNet. The BWU1569 suffix identifies the specific protocol — contact Konmask.com to confirm your variant.
Q: Can Konmask.com source discontinued or long-lead BWU1569 units?
A: Yes. We maintain access to surplus and refurbished stock for obsolete or long-lead BIHL+WIEDEMANN parts. Contact us with your urgency and quantity.
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