KL6581

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The KL6581 is an analog input module with a single channel and supports data transfer rates up to 125 kbaud. Manufactured by Beckhoff as part of their KL Analog Input Modules series, it operates at a nominal voltage of 24 V DC. The module supports up to 8 KL6583 modules and features IP20 protection.

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Product Description:

The KL6581 Terminal achieves both compact design and reliable operation performance. This module belongs to the KL Analog Input Modules series and it is produced by Beckhoff. The module exists for efficient industrial system connections.

The KL6581 terminal uses EnOcean wireless communication technology, which is energy-efficient and typically supports battery-free sensors and switches. It can be connected via 2-wire pairs directly to the EnOcean module which allows up to 8 such modules to be connected in one system. It draws 60 m ampere current from the K bus which helps assess overall power needs. The standard voltage needed to operate the terminal is 24 volts DC, but it tolerates a variation from about 20.4 V to 28.8 V. The terminal can receive different types of EnOcean wireless data formats such as RPS (RORG: F6), 1BS (RORG: D5) and 4BS (RORG: A5) which are suited for different kinds of sensors. For connecting cable the maximum length is 500 meters which means it supports relatively long distance wiring. It has a simplified wiring and power distribution as it gets its operating power directly from the K bus.

The KL6581 terminal has a data transfer rate of 125 kbaud which shows how fast the data is transmitted over the bus. The safe temperature range for operation is 0…55°C which is standard for industrial environments, but may require enclosure in harsher conditions. It complies with European (CE) and North American (UL) standards which makes it suitable for international installations. It has a lightweight design which may affect enclosure choice or mounting strategy. It communicates on a single channel which limits simultaneous communication but simplifies design and control logic.

Cable Length
max. 500 m
Connecting Cable
up to 500 m
Current Consumption K-bus
typ. 60 mA
Data Transfer Rates
125 kbaud
Nominal Voltage
24 V DC (-15%/+20%)
Number Of Channels
1
Operating Temperature
0…55°C
Power Supply
via the K-bus
Protection Rating
IP20
Special Features
Supports up to 8 KL6583 modules
Storage Temperature
-25…+85°C
Supported Telegrams
RPS, 1BS, 4BS
Weight
approx. 85 g

Frequently Asked Questions about KL6581:

Q: Why is the IP20 protection rating important for the KL6581 terminal?

A: IP20 ensures protection against finger-sized objects and prevents accidental contact, making the KL6581 safe for cabinet installations. However, it requires enclosure in harsh environments.

Q: How does KL6581 support installation flexibility in control cabinets?

A: The KL6581 terminal allows variable installation positions, making it adaptable to various cabinet layouts. This flexibility helps optimize space and wiring routes.

Q: Why is a single communication channel used in the KL6581 terminal?

A: A single channel simplifies the system architecture and reduces the processing load. It is ideal for low-traffic EnOcean signal environments like light control.

Q: How does EnOcean technology improve energy efficiency in KL6581 applications?

A: EnOcean-enabled devices paired with KL6581 often work without batteries, harvesting energy from motion or light. This minimizes maintenance and enhances sustainability in automation systems.

Q: Why is the 24 V DC nominal voltage range ideal for the KL6581 terminal?

A: This voltage range is compatible with most industrial control systems. The ±20% tolerance ensures stable operation despite voltage fluctuations.


Internal Product Review

  • ‘‘The Beckhoff KL6581 terminal is an efficient choice for wireless sensor integration. It supports EnOcean protocols (RORG: F6, D5, A5), 125 kbaud data rate, and up to 500 m cable length. With 24 V DC nominal voltage, CE/UL certifications, and lightweight 85 g design, KL6581 offers optimal reliability.’’

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