BECKHOFF EtherCAT Terminal, 1-channel communication interface, serial, RS422/RS485 - EL6021
The EL6021 serial interface enables the connection of devices with RS422 or RS485 interface. These devices communicate with the automation device via the coupler. The active communication channel operates independently of the higher-level bus system in full or half duplex mode at up to 115.2 kbaud. The transmission of differential signals according to RS422 guarantees high immunity to interference through electrically isolated signals.
Specifications
| Manufacturer |
BECKHOFF
|
| Category |
Computer |
| Subcategory |
Communication Cable/Adaptor |
| Part Number |
EL6021 |
| Product Type |
EtherCAT Terminal, 1-channel communication interface, serial, RS422/RS485 |
| Connection technology |
terminal contact |
| Data transfer channels |
TxD and RxD, full/half duplex |
| Data transfer rates |
2400…115,200 baud; default: 9600 baud, 8 data bits, no parity and one stop bit |
| Bit transfer |
with differential signal |
| Interfaces |
1 x RS422/RS485 |
| Line impedance |
120 Ω |
| Cable length |
approx. 1000 m twisted pair |
| Power supply |
via the E-bus |
| Electrical isolation |
500 V (E-bus/signal voltage) |
| Data buffer |
864 bytes receive buffer, 128 bytes transmit buffer |
| Configuration |
no address setting, configuration via PLC |
| Current consumption E-bus |
typ. 170 mA |
| Operating/storage temperature |
-25…+60 °C/-40…+85 °C |
| Relative humidity |
95 %, no condensation |
| Protect. rating/installation pos. |
IP20/variable |
| Pluggable wiring |
for all ESxxxx terminals |
| Approvals/markings |
CE, UL, ATEX, IECEx, cFMus |
| Design form |
compact terminal housing with signal LEDs |
| Material |
polycarbonate |
| Dimensions (W x H x D) |
12 mm x 100 mm x 68 mm |
| Installation |
on 35 mm DIN rail, conforming to EN 60715 with lock |
| Side by side mounting by means of |
double slot and key connection |
| Wiring |
solid conductor (e), flexible conductor (f) and ferrule (a): spring actuation by screwdriver |
| Connection cross-section |
solid wire : 0.08…2.5 mm²,
stranded wire : 0.08…2.5 mm²,
with ferrule : 0.14…1.5 mm² |
| Connection cross-section AWG |
solid wire : AWG 28…14,
stranded wire : AWG 28…14,
with ferrule : AWG 26…16 |
| Stripping length |
8…9 mm |
| Current load power contacts |
Imax: 10 A |
Information About EL6021
Beckhoff’s PC-based automation solutions consist of a wide range of products. These products include TwinCAT automation software, Bus Terminals, and Lightbus systems, among others. They believe in strict compliance with quality standards, and ensuring the best customer service is something they highly value. Today, Beckhoff operates around the globe and through a network of partnerships and subsidiaries, has spread its network in almost 75 countries. Their entire product range is very economical but is not compromised in durability and performance parameters.
The EL6021 is an EtherCAT terminal produced by Beckhoff. The EL6021 has robust electronics and a solidly built outer housing. Due to these features, it can withstand extreme temperatures and very high humidity conditions. The system’s performance remains uncompromised in a temperature range of -25 to 60ᵒ C (for storage: -40 to +85 degrees Celsius). It can be interfaced with RS422/485 interfaces. The system has a line impedance of 120 ohms and comes with an approx. 1000 m cable that is extremely handy when a long-distance operation is required.
Full and half-duplex channels are provided for transferring data and the default data transfer rate is 9600 baud. Since Beckhoff’s products are designed for operating in all kinds of environments, which include very harsh conditions, the EL6021 comes with a design that conforms to the international protection IP20 class standards. IP 20 ensures that the enclosure is protected against solid objects up to 12 mm in diameter. The system is very lightweight and has a mass of just 55 g. Overall, the EL6021 is suitable for a variety of applications owing to its flexibility and high functionality.
Manufacturer information
Beckhoff Automation is a German manufacturer of open automation systems, including industrial PCs, I/O and fieldbus components, drive technology, automation software, and hardware for machine vision. Beckhoff is known for its innovative and reliable automation technology, which is used in a wide range of industries. The company is committed to providing customers with the best possible automation solutions to help them succeed in their businesses.
What Our Experts Think
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High Performance: Beckhoff control systems offer powerful computing capabilities for demanding industrial automation tasks.
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Energy-Efficient: Designed with optimized power usage to support sustainable, low-energy operations.
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Durable & Reliable: Built to withstand harsh industrial environments with high-quality components and rugged designs.
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Quiet Operation: Fanless or low-noise cooling systems in many models ensure minimal disruption in sensitive areas.
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Easy Installation: Modular design allows for quick and flexible setup in a wide range of industrial applications.
Q&A
Q: What is Beckhoff equipment used for?
A: Beckhoff products are used for industrial automation, providing control, motion, and communication solutions for a variety of industries.
Q: What features are included in Beckhoff automation systems?
A: Features include high-performance CPUs, modular I/O systems, compact form factors, and support for leading industrial communication standards like EtherCAT.
Q: Are Beckhoff products energy-efficient?
A: Yes, many Beckhoff systems are designed to reduce energy consumption while maintaining high-speed, precise control.
Q: How does Beckhoff compare to other automation brands?
A: Beckhoff stands out for its open automation systems, flexible designs, and strong performance in both small and large-scale industrial projects.
Maintenance Tips
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Keep Units Clean: Regularly remove dust and debris from ventilation openings and surfaces.
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Check Connections: Inspect cables and connectors periodically for wear or damage.
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Monitor Software Updates: Keep firmware and software updated to ensure optimal performance and security.
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Temperature Control: Ensure devices are operated within recommended temperature ranges to avoid overheating.
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Annual System Check: Have a technician perform a full inspection and preventive maintenance annually.
