I/Os and fieldbus systems
Beckhoff ELMxxxx EtherCAT Measurement Terminals
The ELMxxxx EtherCAT measuring terminals are designed for versatile use both in the production industry and on the test bench. They are the right choice for analog measurements where maximum measuring accuracy (also: lowest measurement uncertainty) in the range of 100 ppm (0.01%) and below is important. They can be used in the terminal segment with EL/ES terminals and thus extend the universal terminal construction kit by high-quality measurement technology: accurate, reliable and stable in the long term.
Beckhoff ELMxxxx EtherCAT Measurement Terminals
Basic series
Two series are available: Multifunction channels with numerous integrated measuring ranges (30 V to 20 mV, ±20 mA, full/half/quarter bridge, strain gauge, IEPE, thermocouple, RTD) as well as functionally reduced versions with different numbers of channels are available in the basic ELM3x0x series, with high sample rates of 10 kSps and more.
Economy series
The ELM3x4x economy series supplements the basic series by the 1 kSps speed class. The terminals allow high-precision measurements of analog signals in the range from ±1.25 V to ±10 V and ±20 mA with maximum accuracy in a wide temperature range at low channel costs.
Multiplexer
In addition, digital channel switches (multiplexers) are available. Multiplexers can be used to switch multiple sources to an analog input channel. The multi-channel acquisition of analog signals and the flexible switching of various test states are thus easily integrated on the DIN rail without externally connected changeover switches. The wear-free semiconductors of the ELM274x 1:4 multiplexer series switch with an extremely low leakage current and are particularly suitable for small analog signals. Thanks to its reed contacts, the functionally identical ELM264x series can be used when leakage current-free separation of signals is required.
If necessary, the EKM1101 EtherCAT Coupler can be placed upstream. It provides a stabilized power supply for the measuring terminals and additionally provides monitoring data for temperature and applied voltages as well as position and vibration in the control cabinet. It is therefore the perfect monitoring tool for a permanently stable measurement operation.
Areas of application
Basic series
Two series are available: Multifunction channels with numerous integrated measuring ranges (30 V to 20 mV, ±20 mA, full/half/quarter bridge, strain gauge, IEPE, thermocouple, RTD) as well as functionally reduced versions with different numbers of channels are available in the basic ELM3x0x series, with high sample rates of 10 kSps and more.
Economy series
The ELM3x4x economy series supplements the basic series by the 1 kSps speed class. The terminals allow high-precision measurements of analog signals in the range from ±1.25 V to ±10 V and ±20 mA with maximum accuracy in a wide temperature range at low channel costs.
Multiplexer
In addition, digital channel switches (multiplexers) are available. Multiplexers can be used to switch multiple sources to an analog input channel. The multi-channel acquisition of analog signals and the flexible switching of various test states are thus easily integrated on the DIN rail without externally connected changeover switches. The wear-free semiconductors of the ELM274x 1:4 multiplexer series switch with an extremely low leakage current and are particularly suitable for small analog signals. Thanks to its reed contacts, the functionally identical ELM264x series can be used when leakage current-free separation of signals is required.
If necessary, the EKM1101 EtherCAT Coupler can be placed upstream. It provides a stabilized power supply for the measuring terminals and additionally provides monitoring data for temperature and applied voltages as well as position and vibration in the control cabinet. It is therefore the perfect monitoring tool for a permanently stable measurement operation.
Areas of application
- piece checking in production machines
- test bench construction, component test
- vibration monitoring
- weighing tasks and strain measurements
- temperature measurement for the temperature control of machine tools
- plug-in compatible with standard EtherCAT Terminals (ELxxxx, ESxxxx, ELXxxxx) in a terminal segment on the DIN rail
- up to 50,000 samples per second per channel
- simultaneous acquisition of channels in the basic series, also cross-terminal through Distributed Clocks synchronization
- adjusted to a high measurement accuracy of ±0.01% (100 ppm) and less, depending on the terminal and measuring range
- sturdy metal housing for perfect heat dissipation and shielding of interference
- available with different plug front ends: LEMO, BNC and Push-In
- pre-treated in the Beckhoff production for stable measurement results in long-term use
- integrated connection and function diagnostics
- extensive mathematical functions can be activated in the terminals
- optionally with calibration certificate (factory, ISO17025 or DAkkS) depending on the type
- EtherCAT Coupler with ID switch and diagnostics EKM1101
- EtherCAT Terminal, 2-channel reed output, multiplexer, 48 V AC/DC, 0.5 A, potential-free, 1 x 4 ELM2642-0000
- EtherCAT Terminal, 4-channel reed output, multiplexer, 48 V AC/DC, 0.5 A, potential-free, 1 x 4 ELM2644-0000
- EtherCAT Terminal, 2-channel solid state relay output, multiplexer, 48 V AC/DC, 1 A, potential-free, 1 x 4 ELM2742-0000
- EtherCAT Terminal, 4-channel solid state relay output, multiplexer, 48 V AC/DC, 1 A, potential-free, 1 x 4 ELM2744-0000
- EtherCAT Terminal, 2-channel analog input, voltage, ±30 V…±20 mV, 24 bit, 20 ksps ELM3002-0000
- EtherCAT Terminal, 2-channel analog input, voltage, ±30 V…±20 mV, 24 bit, 20 ksps, externally calibrated ELM3002-0030
- EtherCAT Terminal, 4-channel analog input, voltage, ±30 V…±20 mV, 24 bit, 10 ksps ELM3004-0000
- EtherCAT Terminal, 4-channel analog input, voltage, ±30 V…±20 mV, 24 bit, 10 ksps, externally calibrated ELM3004-0030
- EtherCAT Terminal, 2-channel analog input, current, ±20 mA, 24 bit, 20 ksps ELM3102-0000
- EtherCAT Terminal, 4-channel analog input, current, ±20 mA, 24 bit, 10 ksps ELM3104-0000
- EtherCAT Terminal, 2-channel analog input, multi-function, ±10…±1.25 V, ±20 mA, 24 bit, 1 ksps ELM3142-0000
- EtherCAT Terminal, 4-channel analog input, multi-function, ±10…±1.25 V, ±20 mA, 24 bit, 1 ksps ELM3144-0000
- EtherCAT Terminal, 6-channel analog input, multi-function, ±10…±1.25 V, ±20 mA, 24 bit, 1 ksps ELM3146-0000
- EtherCAT Terminal, 8-channel analog input, multi-function, ±10…±1.25 V, ±20 mA, 24 bit, 1 ksps ELM3148-0000
- EtherCAT Terminal, 4-channel analog input, temperature, thermocouple, 24 bit, high-precision, 1 ksps ELM3344-0000
- EtherCAT Terminal, 4-channel analog input, temperature, thermocouple, 24 bit, high-precision, 1 ksps, Mini-TC universal ELM3344-0003
- EtherCAT Terminal, 8-channel analog input, temperature, thermocouple, 24 bit, high-precision, 1 ksps ELM3348-0000
- EtherCAT Terminal, 8-channel analog input, temperature, thermocouple, 24 bit, high-precision, 1 ksps, Mini-TC universal ELM3348-0003
- EtherCAT Terminal, 2-channel analog input, measuring bridge, full/half/quarter bridge, 24 bit, 20 ksps ELM3502-0000
- EtherCAT Terminal, 2-channel analog input, measuring bridge, full/half/quarter bridge, 24 bit, 20 ksps, externally calibrated ELM3502-0030
- EtherCAT Terminal, 4-channel analog input, measuring bridge, full/half/quarter bridge, 24 bit, 10 ksps ELM3504-0000
- EtherCAT Terminal, 4-channel analog input, measuring bridge, full/half/quarter bridge, 24 bit, 10 ksps, externally calibrated ELM3504-0030
- EtherCAT Terminal, 2-channel analog input, measuring bridge, full/half/quarter bridge, 24 bit, 1 ksps, TEDS ELM3542-0000
- EtherCAT Terminal, 4-channel analog input, measuring bridge, full/half/quarter bridge, 24 bit, 1 ksps ELM3544-0000
- EtherCAT Terminal, 2-channel analog input, IEPE/accelerometer, 24 bit, 50 ksps ELM3602-0000
- EtherCAT Terminal, 2-channel analog input, IEPE/accelerometer, 24 bit, 50 ksps, BNC ELM3602-0002
- EtherCAT Terminal, 4-channel analog input, IEPE/accelerometer, 24 bit, 20 ksps ELM3604-0000
- EtherCAT Terminal, 4-channel analog input, IEPE/accelerometer, 24 bit, 20 ksps, BNC ELM3604-0002
- EtherCAT Terminal, 2-channel analog input, multi-function, 24 bit, 10 ksps ELM3702-0000
- EtherCAT Terminal, 2-channel analog input, multi-function, 24 bit, 10 ksps, electrically isolated, LEMO ELM3702-0101
- EtherCAT Terminal, 4-channel analog input, multi-function, 24 bit, 10 ksps ELM3704-0000
- EtherCAT Terminal, 4-channel analog input, multi-function, 24 bit, 10 ksps, LEMO ELM3704-0001
- EtherCAT Terminal, 4-channel analog input, multi-function, 24 bit, 10 ksps, TC compensation ELM3704-1001
- Bus end cover for ELMxxxx ELM9012
- Power supply terminal for refreshing the E-bus, with diagnostics ELM9410
