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Beckhoff EJ3318

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

MPN: EJ3318
Category: EJ3xxx | Analog input

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12-month warranty (new) · 3-month (used/refurbished)
30-day returns, no restocking fee on unused parts
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What is the Beckhoff EJ3318?

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

Specifications

Connection method	field wiring: application-specific wiring level on the signal distribution board, EJ plug-in module: 2 x 20-pin socket strip
Number of inputs	8 x TC, 2 x Pt1000 (compensation for the cold junction)
Measuring range	in the range defined in each case for the sensor (default setting: type K; ‑200…+1370°C); mV measurement: ±30 mV…±75 mV
Power supply	via the E-bus
Auxiliary power current	–
Technology	temperature measurement (TC)
Distributed clocks	–
Input filter limit frequency	typ. 1 kHz; depending on sensor length, conversion time, sensor type
Sensor types	thermocouples type K, J, L, E, T, N, U, B, R, S, C (default setting type K), mV measurement
Wiring fail indication	yes
Conversion time	approx. 5 s up to 40 ms, depending on configuration and filter setting, default: approx. 500 ms
Resolution	0.1°C per digit
Measurement error/uncertainty	±0.3% (relative to full scale value)
Electrical isolation	500 V (E-bus/field potential)
Current consumption E-bus	190 mA
Special features	open-circuit recognition, error recognition of the external cold junction compensation (CJC)
Weight	approx. 30 g
Storage temperature	-40…+85°C
Relative humidity	95%, no condensation
EMC immunity/emission	conforms to EN 61000-6-2/EN 61000-6-4
Vibration/shock resistance	conforms to EN 60068-2-6/EN 60068-2-27
Protect. rating/installation pos.	IP20/see documentation
Approvals/markings	CE, UL
Design form	EtherCAT I/O plug-in module
Material	polycarbonate
Installation	on signal distribution board
Mechanical coding	EJ plug-in module: signal-specific coding pins on the housing, signal distribution board: holes in the printed circuit board
Position of the coding pins	2, 7
Locking	latching lug in circuit board cut-out
Dimensions (W x H x D)	12 mm x 66 mm x 55 mm

EJ3318: frequently asked questions

When can EJ3318 be shipped?

EJ3318 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up EJ3318 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for EJ3318 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for EJ3318, subject to availability and destination.