VBG-PB-KF-R4 Pepperl+Fuchs

VBG-PB-KF-R4 PEPPERL+FUCHS Controller module

Brand：Pepperl+Fuchs Model number：VBG-PB-KF-R4

Country of origin: Germany Product weight：0.55kg

HS code：8517623990

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Product Details：

Product Dimensions：

The VBG-PB-KF-R4 is a Specification 3.0 AS-i gateway housed in a compact, durable control cabinet housing (KF series). It is equipped with advanced diagnostic features and an easy-to-read liquid crystal display (LCD) on the front panel, which allows for local configuration and troubleshooting without requiring specialized software. The unit functions as a single master, managing all connected AS-i slaves on the network segment. The network integration is straightforward, as the gateway maps the binary data of the AS-i slaves directly into the PROFIBUS input and output cyclic data images.

Product Parameters

Model Family: AS-Interface Gateway (KF housing series)
AS-i Specification: Version 3.0 (Backward compatible with older AS-i specifications)
PROFIBUS Interface: PROFIBUS DP V0 and V1 slave compliance
Transmission Rate: Up to $12 \text{ Mbit/s}$ on the PROFIBUS side, automatically detected
Number of AS-i Masters: 1 (Single master configuration)
Supported AS-i Slaves: Up to 62 standard or A/B slaves per network segment
Operating Voltage: $24 \text{ VDC}$ PELV or via the AS-i power supply line depending on configuration settings
Current Consumption: Approximately $200 \text{ mA}$
Display and Controls: Illuminated LCD with 4 push-buttons for local navigation and diagnostics
Protection Degree: IP20, suitable for DIN rail mounting inside a control cabinet
Ambient Temperature: $0\text{°C}$ to $55\text{°C}$ ( $32\text{°F}$ to $131\text{°F}$ ) during operation

Product Advantages

A major advantage of the VBG-PB-KF-R4 is its Advanced Diagnostics Capability. The integrated display provides immediate text-based feedback regarding network faults, duplicate address detection, or peripheral errors, minimizing machine downtime during troubleshooting. The Specification 3.0 Compliance allows it to support the fastest data transfer modes and a larger volume of analog data processing compared to older gateway versions.

Furthermore, the Saves Engineering Time aspect is highly beneficial; configuration can be done entirely via the front-panel push-buttons or through standard GSD files in your PLC configuration environment (such as STEP 7 or TIA Portal). Its Compact Design also optimizes space efficiency on the DIN rail, allowing for dense panel layouts.

Important Considerations and Precautions

When installing the VBG-PB-KF-R4, it is absolutely essential to strictly adhere to AS-i Power Guidelines. An AS-Interface network requires a dedicated AS-i power supply ( $30 \text{ VDC}$ ) with data decoupling networks; standard $24 \text{ VDC}$ power supplies will short out the communication signals unless specific decoupling modules are used.

Another vital precaution relates to the PROFIBUS Termination. Ensure that the final device on the PROFIBUS network segments has its termination resistor switched "ON" to prevent signal reflections and bus communication drops. Additionally, observe the maximum AS-i Cable Length Limit of $100 \text{ meters}$ without repeaters; exceeding this distance will cause signal degradation and intermittent slave communication failure. Finally, always Turn Off Power to the rack before attaching or removing the fieldbus connectors to avoid damaging the communication drivers.

Product Applications

The Pepperl+Fuchs VBG-PB-KF-R4 is implemented across a wide array of automated processing and manufacturing sectors.

Conveyor and Logistics Systems: Connecting hundreds of proximity sensors, photoeyes, and motor starters along long conveyor lines back to a central Siemens PLC via PROFIBUS.
Packaging Machines: Managing localized discrete I/O, safety switches, and pneumatic valve islands efficiently without routing hundreds of individual cables.
Automotive Body Shops: Used in assembly lines where decentralized I/O networks must be robust against electromagnetic interference from welding equipment.
Food and Beverage Processing: Interfacing field-level digital valves and level switches to centralized control systems in bottling and mixing plants.
Material Handling and Sorting: Providing reliable communication for distributed sorting mechanisms and pushers in high-speed distribution centers.

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