EL6021
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MPN: EL6021-0000
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The EL6021 EtherCAT Terminal features one CANopen channel and a configurable baud rate via TwinCAT or object. Manufactured by Beckhoff as part of the EL EtherCAT Terminals series, it supports transmission rates of up to 1 Mbit/s and operates in temperatures from 0 to 55°C. Measuring 12mm x 100mm x 68mm, it uses a DIN rail mount.
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Product Description:
The EL6021 is an EtherCAT terminal that belongs to the EL EtherCAT Terminals series. It is an efficient terminal from the Beckhoff and it integrates advanced features like RS422 or RS 485 support and different signaling.
The EL6021 EtherCAT Terminal meets European standards for electromagnetic compatibility (EMC) which ensures minimal interference with or from other devices. It can work reliably in environments ranging from -25°C to +60°C which makes it suitable for most industrial applications. It does not require manual address configuration and all setup is performed through the connected PLC. It functions in high humidity conditions up to 95% as long as there is no moisture condensation. The module offers 500 V isolation between the EtherCAT E-bus and its signal lines which improves safety and reduces noise interference. It has a lightweight design with a mass of only 55 grams which allows for easy handling and mounting within compact control cabinets. It comes with a RS422/RS485 single series interface which allows communication over RS422 or RS485 standards for connecting to serial devices. In this module data is transmitted using differential signaling which enhances resistance to electrical noise and improves signal integrity over long distances.
The EL6021 EtherCAT terminal supports pluggable wiring which allows quick and tool free terminal replacements. It typically draws 170 mA from the EtherCAT E-bus which impacts power planning for the input and output segment. For this module the recommended communication cable length is about 1000 meters when using twisted pair cabling. The terminal receives its operational power directly from the EtherCAT bus which simplifies wiring and eliminates external power needs. It supports a wide range of serial communication speeds and standard framing.
Frequently Asked Questions about EL6021:
Q: How does the EL6021 ensure data integrity in electrically noisy environments?
A: The EL6021 uses differential signal transmission to minimize noise and interference. This improves data reliability over long cable runs in industrial settings.
Q: Why does the EL6021 have both transmit and receive buffers?
A: The dual buffer design ensures smooth asynchronous data flow. It prevents data loss during high-volume communication by temporarily storing incoming and outgoing packets.
Q: What benefits does 120 Ω line impedance offer in the EL6021 terminal?
A: The 120 Ω impedance matches standard RS485 bus requirements. This ensures signal reflection is minimized, maintaining transmission accuracy over extended distances.
Q: How does the EL6021 manage long-distance communication effectively?
A: EL6021 supports twisted pair cabling up to 1000 meters. Combined with differential signaling, it ensures stable and consistent communication across large installations.
Q: Why is the EL6021 preferred in compact control cabinets?
A: With a compact form factor and 55 g weight, EL6021 is easy to install. It enables dense packing of terminals without mechanical strain or overheating.
