Beckhoff Terminal, 8-channel Analog Input - EL3318
The EL3318 is an EtherCAT terminal designed for analog input with 8 channels for temperature measurement using thermocouples, offering 16-bit resolution. It supports the direct connection of eight thermocouples and is suitable for space-saving use in control cabinets. The terminal operates thermocouple sensors using a 2-wire technique. A microprocessor handles linearization across the entire selectable temperature range.
Specifications
| Part Number |
EL3318 |
| Category |
PLCs/Machine Control |
| Subcategory |
PLC Programming Terminal |
| Number of inputs |
8 |
| Power supply |
via the E-bus |
| Distributed clocks |
– |
| Input filter limit frequency |
typ. 1 kHz |
| Connection method |
2-wire |
| Conversion time |
approx. 2.5 s up to 20 ms, depending on configuration and filter setting, default: approx. 250 ms |
| Voltage measurement |
±30/±60/±75 mV |
| Resolution |
16 bit, representation adjustable: 0.1/0.01°C or 1/2/4 µV per digit |
| Temperature measurement (thermocouple) |
type B, C, E, J, K, L, N, R, S, T, U (default setting: type K) |
| Measurement uncertainty (voltage measurement) |
at ±75 mV, 23°C ambient temperature: < ±0.096% (relative to full scale value) |
| Electrical isolation |
500 V (E-bus/signal voltage) |
| Current consumption power contacts |
– |
| Current consumption E-bus |
typ. 210 mA |
| Special features |
channel by channel wire break detection, internal and external cold junction, firmware filter adjustable |
| Operating/storage temperature |
-25…+60°C/-40…+85°C |
| Weight |
approx. 70 g |
| Relative humidity |
95%, no condensation |
| Vibration/shock resistance |
conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission |
conforms to EN 61000-6-2/EN 61000-6-4 |
| Protection rating/installation pos. |
IP20/variable |
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.
