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BK7520 | Beckhoff SERCOS II Bus Coupler with Fiber Optic Interface
- Regular price
- $649.00
- Sale price
- $649.00
- Regular price
-
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Product Description P/N: BK7520
Description
The Beckhoff BK7520 is a SERCOS II bus coupler designed to link the SERCOS bus system with modular electronic terminal blocks. Supporting up to 64 terminals, or 255 with K-bus extension, it enables scalable integration with automatic process image mapping.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Beckhoff |
| Category | Fieldbus & Communication Interfaces |
| Part Number | BK7520 |
| Subcategory | Bus Couplers |
| Bus System | SERCOS II |
| Number of Bus Terminals | 64 (up to 255 with K-bus extension) |
| Max. Fieldbus Capacity | 254 word I/O for cyclic interface (depending on master) |
| Digital Peripheral Signals | 1,020 inputs/outputs |
| Analog Peripheral Signals | 254 inputs/outputs |
| Configuration Tool | KS2000 software |
| Data Transfer Rates | 2/4/8/16 Mbaud (set via configuration switch) |
| Bus Interface | FSMA standard, IEC 872-2 |
| Transmission Medium | 1,000 µm plastic fiber optic |
| Power Supply | 24 V DC (-15%/+20%) |
| Input Current | 70 mA + (total K-bus current)/4, max. 500 mA |
| Starting Current | 2.5 × continuous current |
| Recommended Fuse | ≤ 10 A |
| K-Bus Current Supply | 1750 mA |
| Power Contacts | Max. 24 V DC / Max. 10 A |
| Electrical Isolation | 500 V (power contact/supply voltage/fieldbus) |
| Station Distance | 40 m (plastic fiber optic) |
| Operating Temperature | 0…55 °C |
| Storage Temperature | -25…+85 °C |
| Relative Humidity | 95%, no condensation |
| Protection Class | IP20 |
| Weight | Approx. 170 g |
Information About BK7520
The BK7520 is a Beckhoff bus coupler that integrates the SERCOS II bus system with modular electronic terminals, allowing distributed I/O in automation systems. One coupler can connect up to 64 terminals directly and up to 255 with K-bus extension, making it highly scalable for large systems. The device automatically identifies connected terminals and assigns their inputs and outputs to the process image, simplifying setup and configuration. With support for plastic fiber optic transmission at adjustable rates from 2 to 16 Mbaud, it ensures fast and reliable communication over distances up to 40 meters between stations.
Key Features:
-
SERCOS II Bus Integration: Links SERCOS II systems with Beckhoff Bus Terminals for modular automation architectures.
-
High Channel Capacity: Supports up to 64 terminals natively and up to 255 with K-bus extension technology.
-
Automatic Process Image Mapping: Recognizes connected terminals and generates input/output assignments automatically.
-
Flexible Data Rates: Operates at selectable speeds of 2, 4, 8, or 16 Mbaud via configuration switch.
-
Robust Fiber Optic Communication: Uses FSMA-compliant plastic fiber optic cabling for reliable, interference-free data transfer.
-
Large I/O Capability: Handles up to 1,020 digital signals and 254 analog signals for extensive control systems.
-
Strong Electrical Isolation: Provides 500 V separation between fieldbus, power supply, and power contacts for safe operation.
-
Compact and Reliable Design: Features a lightweight 170 g build with IP20 protection and wide temperature tolerance.
The BK7520 delivers the reliability and precision required for scalable SERCOS II fieldbus integration in modular automation systems.
Description
The Beckhoff BK7520 is a SERCOS II bus coupler designed to link the SERCOS bus system with modular electronic terminal blocks. Supporting up to 64 terminals, or 255 with K-bus extension, it enables scalable integration with automatic process image mapping.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Beckhoff |
| Category | Fieldbus & Communication Interfaces |
| Part Number | BK7520 |
| Subcategory | Bus Couplers |
| Bus System | SERCOS II |
| Number of Bus Terminals | 64 (up to 255 with K-bus extension) |
| Max. Fieldbus Capacity | 254 word I/O for cyclic interface (depending on master) |
| Digital Peripheral Signals | 1,020 inputs/outputs |
| Analog Peripheral Signals | 254 inputs/outputs |
| Configuration Tool | KS2000 software |
| Data Transfer Rates | 2/4/8/16 Mbaud (set via configuration switch) |
| Bus Interface | FSMA standard, IEC 872-2 |
| Transmission Medium | 1,000 µm plastic fiber optic |
| Power Supply | 24 V DC (-15%/+20%) |
| Input Current | 70 mA + (total K-bus current)/4, max. 500 mA |
| Starting Current | 2.5 × continuous current |
| Recommended Fuse | ≤ 10 A |
| K-Bus Current Supply | 1750 mA |
| Power Contacts | Max. 24 V DC / Max. 10 A |
| Electrical Isolation | 500 V (power contact/supply voltage/fieldbus) |
| Station Distance | 40 m (plastic fiber optic) |
| Operating Temperature | 0…55 °C |
| Storage Temperature | -25…+85 °C |
| Relative Humidity | 95%, no condensation |
| Protection Class | IP20 |
| Weight | Approx. 170 g |
Information About BK7520
The BK7520 is a Beckhoff bus coupler that integrates the SERCOS II bus system with modular electronic terminals, allowing distributed I/O in automation systems. One coupler can connect up to 64 terminals directly and up to 255 with K-bus extension, making it highly scalable for large systems. The device automatically identifies connected terminals and assigns their inputs and outputs to the process image, simplifying setup and configuration. With support for plastic fiber optic transmission at adjustable rates from 2 to 16 Mbaud, it ensures fast and reliable communication over distances up to 40 meters between stations.
Key Features:
-
SERCOS II Bus Integration: Links SERCOS II systems with Beckhoff Bus Terminals for modular automation architectures.
-
High Channel Capacity: Supports up to 64 terminals natively and up to 255 with K-bus extension technology.
-
Automatic Process Image Mapping: Recognizes connected terminals and generates input/output assignments automatically.
-
Flexible Data Rates: Operates at selectable speeds of 2, 4, 8, or 16 Mbaud via configuration switch.
-
Robust Fiber Optic Communication: Uses FSMA-compliant plastic fiber optic cabling for reliable, interference-free data transfer.
-
Large I/O Capability: Handles up to 1,020 digital signals and 254 analog signals for extensive control systems.
-
Strong Electrical Isolation: Provides 500 V separation between fieldbus, power supply, and power contacts for safe operation.
-
Compact and Reliable Design: Features a lightweight 170 g build with IP20 protection and wide temperature tolerance.
The BK7520 delivers the reliability and precision required for scalable SERCOS II fieldbus integration in modular automation systems.