EL3742
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MPN: EL3742-0000
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The EL3742 terminal offers 2 analog inputs, a 16-bit resolution, a sampling rate of 100 ksps per channel, and a measuring range of ±10 V. Part of the EL EtherCAT Terminals series by Beckhoff, it operates within a temperature range of 0 to +55°C, features DIN rail mounting, and draws 110 mA from the K-bus power supply.
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Product Description:
The EL3742 is a two-channel analog input terminal made by Beckhoff that can be used in EtherCAT systems. The terminal can take in analog signals from 0 to 20 mA and turn them into 16-bit digital numbers that include the sign.
The EL3742 analog input terminal has differential input types that enable the precise measurement of signals with minimal noise. The highest sampling rate is 100 ksps, which makes sure that both lines get data quickly. The terminal has an oversampling factor that can be changed from 1 to 100. This lets you get the best mix of resolution and speed. High-frequency noise is blocked by an 80 kHz cutoff frequency that controls the input filtering. Usually, the input resistance is 85 ohms plus a diode voltage that makes sure the input circuits have the right load properties. The E-bus provides power, and the current consumed is normally maintained at 200 mA. The unit meets the EN 61000-6-2 and EN 61000-6-4 EMC standards, which protect the signal even in noisy places. Vibration resistance meets EN 60068-2-6 standards, which help keep installations stable in changing circumstances. This provides a variety of options when assembling the panel, as the terminal can be installed in a variety of locations.
The EL3742 analog input terminal can operate reliably in a diverse array of environments if its temperature range is between -25 °C and +60 °C. The temperature range for keeping, from -40 to +85 °C, makes sure that the products are safe while they are being moved or shut down. The input channels are made to keep signals separate, which helps keep the data correct. The terminal has the ATEX II 3 G Ex ec IIC T4 Gc marking.
Frequently Asked Questions about EL3742:
Q: Why does EL3742 have an 80 kHz filter frequency?
A: The 80 kHz input filter in the EL input terminal suppresses high-frequency noise that could distort the analog signal measurements.
Q: Does EL3742 support ATEX zone classification compliance?
A: Yes, the input terminal meets ATEX II 3 G Ex ec IIC T4 Gc classification that ensures safety in explosive gas environments.
Q: Why is oversampling adjustable in the EL3742 terminal?
A: Adjustable oversampling in the input terminal enables a trade-off between acquisition speed and signal resolution based on application requirements.
Q: Do EL3742 inputs offer a differential signal handling advantage?
A: Yes, the input terminal uses a differential input type that helps in accurate signal capture by rejecting common-mode interference.
Q: How does EL3742 operate without an external power supply?
A: The analog input terminal receives power directly from the EtherCAT E-bus that eliminates the need for external terminal-level power input.
