The BECKHOFF KL6021 is a single-channel serial interface Bus Terminal designed to enable direct integration of devices with RS422 or RS485 interfaces into the modular Beckhoff Bus Coupler system. Operating as part of the K-bus terminal network, this module provides bidirectional data transfer for TxD and RxD channels in both full and half-duplex modes. The terminal operates independently of the higher-level fieldbus system, allowing simple, protocol-neutral serial communication directly from the controller.
Equipped with integrated electrical isolation between the K-bus and the signal lines, the BECKHOFF KL6021 ensures high noise immunity and safeguards sensitive control components from field-side electrical disturbances. The terminal requires no manual address settings or hardware configuration switches, as all setup parameters are handled directly through the system controller or Bus Coupler.
| Parameter | Specification |
|---|---|
| Manufacturer | BECKHOFF |
| Exact Model | KL6021 |
| Product Type | Bus Terminal |
| Technology | RS422 / RS485 serial interface |
| Number of Channels | 1 |
| Data Transfer Rates | 1200...19,200 baud (default: 9600 baud, 8 data bits, no parity, 1 stop bit) |
| Data Buffer | 128 bytes receive buffer, 16 bytes transmit buffer |
| Bit Width in Process Image | Input/output: 3 x 8-bit user data, 1 x 8-bit control/status (up to 5 x 8-bit user data possible) |
| Nominal Voltage | 24 V DC (via K-bus) |
| Current Consumption (K-bus) | typ. 65 mA |
| Current Consumption (Power Contacts) | - (no power contacts) |
| Electrical Isolation | 500 V (K-bus / signal voltage) |
| Line Impedance | 120 ohms |
| Cable Length | approx. 1000 m twisted pair |
| Weight | approx. 60 g |
| Operating Temperature | 0 to +55 degC |
| Storage Temperature | -25 to +85 degC |
| Relative Humidity | 95%, no condensation |
| Protection Class | IP20 |
| Approvals/Markings | CE, UL, ATEX |
| Ex Marking | II 3 G Ex nA IIC T4 Gc |
When replacing a failed terminal, verify that the configuration of the new module matches the original unit's settings in the controller. Because the BECKHOFF KL6021 relies on parameterization from the Bus Coupler or PLC program, ensure the serial parameters (baud rate, data bits, parity, stop bits) are correctly initialized during system startup to restore seamless communication with the connected peripheral device.
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Returns & Warranty
Manufacturer: BECKHOFF
Product No.: KL6021
Country of origin:Germany
Product Type: Bus Terminals
Payment: T/T, Western Union
Weight: 60g
Shipping port: Xiamen
Warranty: 12 months
The BECKHOFF KL6021 is a single-channel serial interface Bus Terminal designed to enable direct integration of devices with RS422 or RS485 interfaces into the modular Beckhoff Bus Coupler system. Operating as part of the K-bus terminal network, this module provides bidirectional data transfer for TxD and RxD channels in both full and half-duplex modes. The terminal operates independently of the higher-level fieldbus system, allowing simple, protocol-neutral serial communication directly from the controller.
Equipped with integrated electrical isolation between the K-bus and the signal lines, the BECKHOFF KL6021 ensures high noise immunity and safeguards sensitive control components from field-side electrical disturbances. The terminal requires no manual address settings or hardware configuration switches, as all setup parameters are handled directly through the system controller or Bus Coupler.
| Parameter | Specification |
|---|---|
| Manufacturer | BECKHOFF |
| Exact Model | KL6021 |
| Product Type | Bus Terminal |
| Technology | RS422 / RS485 serial interface |
| Number of Channels | 1 |
| Data Transfer Rates | 1200...19,200 baud (default: 9600 baud, 8 data bits, no parity, 1 stop bit) |
| Data Buffer | 128 bytes receive buffer, 16 bytes transmit buffer |
| Bit Width in Process Image | Input/output: 3 x 8-bit user data, 1 x 8-bit control/status (up to 5 x 8-bit user data possible) |
| Nominal Voltage | 24 V DC (via K-bus) |
| Current Consumption (K-bus) | typ. 65 mA |
| Current Consumption (Power Contacts) | - (no power contacts) |
| Electrical Isolation | 500 V (K-bus / signal voltage) |
| Line Impedance | 120 ohms |
| Cable Length | approx. 1000 m twisted pair |
| Weight | approx. 60 g |
| Operating Temperature | 0 to +55 degC |
| Storage Temperature | -25 to +85 degC |
| Relative Humidity | 95%, no condensation |
| Protection Class | IP20 |
| Approvals/Markings | CE, UL, ATEX |
| Ex Marking | II 3 G Ex nA IIC T4 Gc |
When replacing a failed terminal, verify that the configuration of the new module matches the original unit's settings in the controller. Because the BECKHOFF KL6021 relies on parameterization from the Bus Coupler or PLC program, ensure the serial parameters (baud rate, data bits, parity, stop bits) are correctly initialized during system startup to restore seamless communication with the connected peripheral device.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|
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