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EJ3318 | EtherCAT plug-in module, 8-channel analog input, temperature, thermocouple, 16 bit

EJ3318 | EtherCAT plug-in module, 8-channel analog input, temperature, thermocouple, 16 bit

EJ3318 | EtherCAT plug-in module, 8-channel analog input, temperature, thermocouple, 16 bit

EJ3318 | EtherCAT plug-in module, 8-channel analog input, temperature, thermocouple, 16 bit

EJ3318 | EtherCAT plug-in module, 8-channel analog input, temperature, thermocouple, 16 bit

EJ3318 | EtherCAT plug-in module, 8-channel analog input, temperature, thermocouple, 16 bit

EJ3318 | EtherCAT plug-in module, 8-channel analog input, temperature, thermocouple, 16 bit

EJ3318 | EtherCAT plug-in module, 8-channel analog input, temperature, thermocouple, 16 bit

EJ3318 | EtherCAT plug-in module, 8-channel analog input, temperature, thermocouple, 16 bit

EtherCAT plug-in modules of the EJ series

Thermocouple measurement with Beckhoff components: precise and fast

Efficient series machine manufacturing: plug-and-play in the control cabinet

Measurement technology easily configured: Analog EtherCAT input terminals.

Measurement technology simply integrated: With the analog EtherCAT Terminals.

EtherCAT plug-in modules: Bus Terminals for circuit boards

EtherCAT plug-in modules of the EJ series

Thermocouple measurement with Beckhoff components: precise and fast

Efficient series machine manufacturing: plug-and-play in the control cabinet

Measurement technology easily configured: Analog EtherCAT input terminals.

Measurement technology simply integrated: With the analog EtherCAT Terminals.

EtherCAT plug-in modules: Bus Terminals for circuit boards

The EJ3318 EtherCAT plug-in module allows the direct connection of eight thermocouples and is therefore particularly well suited to compact applications on the signal distribution board. The module's circuit can operate thermocouple sensors using the 2-wire technique. A microprocessor handles linearization across the whole temperature range, which is freely selectable. The error LEDs indicate a broken wire. The compensation for the cold junction is done by two RTDs (Pt1000), which can be placed anywhere on the signal distribution board. The EJ3318 can also be used for mV measurements.

Product status:

regular delivery

Product information

Technical dataEJ3318
Connection method2-wire
Number of inputs8 x TC, 2 x Pt1000 (compensation for the cold junction)
Measuring rangein the range defined in each case for the sensor (default setting: type K; ‑200…+1370°C);
mV measurement: ±30 mV…±75 mV
Power supplyvia the E-bus
Auxiliary power current
Technologytemperature measurement (TC)
Distributed clocks
Input filter limit frequencytyp. 1 kHz; depending on sensor length, conversion time, sensor type
Sensor typesthermocouples type K, J, L, E, T, N, U, B, R, S, C (default setting type K), mV measurement
Wiring fail indicationyes
Conversion timeapprox. 5 s up to 40 ms, depending on configuration and filter setting, default: approx. 500 ms
Resolution0.1°C per digit
Measurement error/uncertainty< ±0.3% (relative to full scale value)
Electrical isolation500 V (E-bus/field potential)
Current consumption E-bus190 mA
Special featuresopen-circuit recognition, error recognition of the external cold junction compensation (CJC)
Weightapprox. 30 g
Operating/storage temperature-25…+60°C/-40…+85°C
Relative humidity95%, no condensation
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
Protect. rating/installation pos.IP20/see documentation
Approvals/markingsCE, UL
Housing dataEJ-12-16pin
Design formEtherCAT I/O plug-in module
Materialpolycarbonate
Installationon signal distribution board
Mechanical codingEJ plug-in module: signal-specific coding pins on the housing,
signal distribution board: holes in the printed circuit board
Lockinglatching lug in circuit board cut-out
Connection methodfield wiring: application-specific wiring level on the signal distribution board,
EJ plug-in module: 2 x 20-pin socket strip
Dimensions (W x H x D)12 mm x 66 mm x 55 mm

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