The ELM300x EtherCAT Terminals are designed for flexible voltage m

easurement from 20 mV to 30 V in eleven measuring ranges.

The measuring range is selected in the CoE, as are the other setting

options such as the filter parameters. Irrespective of the signal

configuration, all ELM modules have the same technological properties.

The ELM300x modules for voltage measurement offer a maximum

sampling rate of 10.000 or 20.000 samples per second.

The 2-pin plug (push-in) can be removed for maintenance purposes

without releasing the individual wires.

The individual calibration certificate for each device, in accordance

with ISO 17025 or DAkkS, depending on the device variant, can

be downloaded here. These calibration certificates are issued for

Beckhoff by an accredited service provider. Recalibration on request.

Extensive documentation is available from Beckhoff sales, support or

measurement@beckhoff.com.

This ELM3xxx series measurement terminal enables efficient

implementation of complex system-integrated data acquisition systems

(DAQ) that place high demands on measurement accuracy and time

synchronization.

The ELM300x EtherCAT Terminals are designed for flexible voltage

measurement from 20 mV to 30 V in eleven measuring ranges.

The measuring range is selected in the CoE, as are the other setting

options such as the filter parameters. Irrespective of the signal

configuration, all ELM modules have the same technological properties.

The ELM300x modules for voltage measurement offer a maximum

sampling rate of 10.000 or 20.000 samples per second.

The 2-pin plug (push-in) can be removed for maintenance purposes

without releasing the individual wires.

This terminal is also available as a variant with an individual calibration

certificate. (See related products) Extensive documentation is available

from Beckhoff sales, support or measurement@beckhoff.com.

This ELM3xxx series measurement terminal enables efficient

implementation of complex system-integrated data acquisition systems

(DAQ) that place high demands on measurement accuracy and time

synchronization.

The EL3783-0100 EtherCAT Terminal is a power monitoring I/O terminal

used for state monitoring of a 3-phase AC voltage system.

For each phase, voltage up to 400/690 Vrms and current up to 1 Arms/5

Arms are sampled as instantaneous values with a resolution of 16 bits.

The six channels are measured simultaneously based on the EtherCAT

oversampling principle with a temporal resolution of up to 50 µs and then

passed on to the control system. With the processing power available

there and in combination with theTwinCAT Function TF3650. true RMS

or power calculations as well as complex user-specific algorithms can be

calculated via the voltage and current characteristics.

Through the oversampling principle, the terminal is able to measure at

significantly shorterintervals than the cycle time of the control system.

AC and DC parameters must be connected and measured with a common

reference potential.

Through the feature “ExtendedRange”, the user has the full technical

measuring range available at up to 130% of the specified nominal measuring

range. The EL3783-0100 supports distributed clocks and can therefore

measure synchronously with other EtherCAT devices. In combination with

EL6688 it can be synchronized via IEEE 1588 to external clocks.

The terminal can also be operated without distributed clocks.

The adapted voltage measuring range to 130 V is optimally suited for

connecting medium voltage transformers, for example.

The EL3783 EtherCAT Terminal is a power monitoring I/O terminal

 used for state monitoring of a 3-phase AC voltage system.

For each phase, voltage up to 400/690 Vrms and current up to 1

Arms/5 Arms are sampled as instantaneous values with a resolution

of 16 bits. The six channels are measured simultaneously based on

the EtherCAT oversampling principle with a temporal resolution of

up to 50 µs and then passed on to the control system.

With the processing power available there and in combination with

the TwinCAT Function TF3650. true RMS or power calculations as

well as complex user-specific algorithms can be calculated via the

voltage and current characteristics. Through the oversampling

principle, the terminal is able to measure at significantly shorter 

intervals than the cycle time of the control system.

AC and DC parameters must be connected and measured with a

common reference potential.

Through the feature “ExtendedRange”, the user has the full technical

measuring range available at up to 130% of the specified nominal

measuring range. The EL3783 supports distributed clocks and can

therefore measure synchronously with other EtherCAT devices.

In combination with EL6688 it can be synchronized via IEEE 1588 to

external clocks. The terminal can also be operated without distributed

clocks.

The EL3751-0024 analog input terminal is a variant of the EL3751-0000

multi-functional terminal that has been reduced to resistance or

temperature measurement (RTD). It measures to 5 kΩ full scale value in

2-/3-/4-wire connection. RTD temperature sensors (Pt100/1000. NI, KTY

etc.) can also be connected.

The EL3751-0024 is particularly suitable for fast and highly accurate

temperature measurements with a 10 ksps sampling rate. Even demanding

temperature measurements are possible with the two freely adjustable

numerical filters up to max. 39th order FIR/6th order IIR and the freely

adjustable scaler with support point table. The signal state of the EtherCAT

Terminal is indicated by LEDs.

Each terminal has a unique ID number.

The individual Beckhoff factory calibration certificate can be downloaded

via Beckhoff Service.

The measuring ranges generally reach accuracy class 0.01%. For further

information please refer to the documentation. Through the feature

“ExtendedRange” the user has the full technical measuring range available,

up to 107% of the specified nominal measuring range, depending on the

measuring range. This feature can be disabled, in order to ensure compatibility

with the “LegacyRange” of the EL30xx/EL31xx series.

To suppress aliasing effects, the input channel features two configurable

numeric software filters up to 39th order FIR/6th order IIR.

The filters can be preselected or freely described, so that a band stop or a

band pass can be realized. The measurement at the differential input channel

is digitized with a resolution of 24 bit and 10 ksps and is transmitted to the

higher-level automation device electrically isolated and optionally with oversampling.

The data rate can be internally reduced, in which case the filters have to be

adjusted accordingly. Non-linear characteristic sensor curves can be corrected

flexibly through an integrated sampling points table.

Simple mathematical operations are also possible.

The integrated supply and the switchable auxiliary resistors enable direct connection

of a resistor bridge (strain gauge) or a load cell, a fixed ohmic resistor, a PTC or a

potentiometer. The signal state of the EtherCAT Terminal is indicated by light emitting

diodes.

Each terminal has a unique ID number.

The individual Beckhoff factory calibration certificate can be downloaded here for

each device. Recalibration (ZS9001) is possible via Beckhoff Service.

The EL3751-0020 analog input terminal is part of the new generation of

analog EtherCAT measurement terminals. The nominal measuring range

of the input channel can be comprehensively parameterized, both

electrically and on the software side:

• voltage measurement: ±5 mV to ±30 V (incl. ±10 V), 0…10 V, 0…5 V

• current measurement: ±20 mA, 4…20 mA, 0…20 mA, NAMUR NE43

• resistance measurement: 0…5 kΩ

• electrical resistance R in 2-/3-/4-wire connection

• RTD measurement in 2-/3-/4-wire connection

• strain gauge/load cell: ¼ bridge (350 Ω + 120 Ω), ½ bridge (±16 mV/V)

and full bridge (±32 mV/V) with integrated supply in 2-/3-/4-/5-/6-wire

connection

• potentiometer: min. 1 kΩ

The measuring ranges generally reach accuracy class 0.01%. For further

information please refer to the documentation. Through the feature

“ExtendedRange” the user has the full technical measuring range available,

up to 107% of the specified nominal measuring range, depending on the

measuring range. This feature can be disabled, in order to ensure

compatibility with the “LegacyRange” of the EL30xx/EL31xx series.

To suppress aliasing effects, the input channel features two configurable

numeric software filters up to 39th order FIR/6th order IIR.

The filters can be preselected or freely described, so that a band stop or

a band pass can be realized. The measurement at the differential input

channel is digitized with a resolution of 24 bit and 10 ksps and is

transmitted to the higher-level automation device electrically isolated and

optionally with oversampling. The data rate can be internally reduced,

in which case the filters have to be adjusted accordingly.

Non-linear characteristic sensor curves can be corrected flexibly through

an integrated sampling points table. Simple mathematical operations are

also possible.

The integrated supply and the switchable auxiliary resistors enable direct

connection of a resistor bridge (strain gauge) or a load cell, a fixed ohmic

resistor, a PTC or a potentiometer.

The signal state of the EtherCAT Terminal is indicated by light emitting

diodes.

Each terminal has a unique ID number.

This terminal is also available as a variant with an individual calibration

certificate.