EL1258-0000

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The EL1258-0000 terminal is a lightweight component, weighing approximately 55 grams, and features 8 inputs. Manufactured by Beckhoff and part of the EL EtherCAT Terminal Series, it operates at a nominal voltage of 24 V DC. The terminal includes multi-timestamping functionality and conforms to EMC standards EN 61000-6-2/EN 61000-6-4.

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Product Description:

The Beckhoff EL1258-0000 8-channel digital input terminal belongs to the high-speed signal input section from the EL EtherCAT Terminal Series. Its nominal voltage is 24 V DC (-15% to +20%) and requires 2-wire David technology. Overall, it is suitable for many different automation systems that needs quick retrieval and timestamping of signals.

Apart from this, it provides multi-timestamping features and less than 1 µs input filter, which eliminates great time delays in signal detection. It has internal sampling and execution times ranging from 10 to 40 µs, facilitating the detection of 100,000 edges in a second. Furthermore, the precision of distributed clocks (DC) functionality assures synchronization error 1 µs and this makes it suitable for the systems requiring timing constraints.

The ranges of input signals are in accordance with the IEC 61131-2 standards, where a 0 signal is between -3V and 5V, while a 1 signal is between 11 and 30 volts. Each of these inputs has a typical current consumption of 3ma. The terminal draws 130mA from E-bus while 6mA from power contacts meaning the operation is power efficient within the Ether-CAT network. The EL1258-0000 weighs an approximate weight of 55 grams and has compact dimensions thanks to the IP20 protection ratings which are designed for installation in controlled environments. The operating temperature range is 0 °C up to + 55 °C and the storage temperature range is -25 °C up to +85 °C. The multi-timestamping feature, accompanied by distributed clocks synchronization, and high speed of signal processing makes the EL1258-0000 very suitable for use in such applications as high frequency sampling, motion control and precise event identification.

Connection technology
2‑wire
Current consumption (power contacts)
typ. 6 mA
Current consumption E‑bus
typ. 130 mA
Detectable edges
100…25 000 edges/s
Distributed clock precision
<1 µs
Distributed clocks
yes
Input current
typ. 3 mA
Input filter
<1 µs
Internal sampling time
10…40 µs
Nominal voltage
24 V DC (-15%/+20%)
Number of inputs
8
Operating temperature
0…+55 °C
Signal voltage (type 0)
-3…+5 V
Signal voltage (type 1)
11…30 V
Special features
multi-timestamping
Storage temperature
-25…+85 °C
Weight
approx. 55 g
  • EL1258

Frequently Asked Questions about EL1258-0000:

Q: How many inputs does the EL1258-0000 module provide?

A: The EL1258-0000 offers 8 digital inputs, making it suitable for monitoring multiple signals.

Q: What connection technology is used for the inputs?

A: The inputs use 2-wire connection technology, simplifying wiring and installation.

Q: What is the nominal voltage for the EL1258-0000?

A: The module operates at 24 V DC, with a tolerance of -15% to +20%.

Q: What are the signal voltage ranges for "0" and "1"?

A: - "0" Signal Voltage: -3 V to +5 V (compliant with IEC 61131-2, type 1/3) - "1" Signal Voltage: 11 V to 30 V (compliant with IEC 61131-2, type 1/3)

Q: What is the typical input current for the EL1258-0000?

A: The typical input current is 3 mA, following the EN 61131-2, type 1/3 standard.


Internal Product Review

  • ‘‘Beckhoff manufactures the EtherCAT Terminal, with number EL1258-0000. It has eight inputs and is a member of the EL EtherCAT Terminal Series. With an input filter of less than 1 µs, it has the ability to multi-time stamp. It weighs around 55 g and has an IP20 protection certification.’’

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