Beckhoff EL3742 — EtherCAT Terminals
The EL3742 analog input terminal handles signals in the range between 0 and 20 mA. The voltage is digitized to a resolution of 16 bits, and is transmitted, electrically isolated, to the controller. The input channels of the EtherCAT Terminal have
| Approvals/markings | CE, CCC, UL, ATEX, IECEx |
|---|---|
| Bit width in the process image | input: n x 2 x 16 bit data; optionally 2 x 16 bit cycle counter, 4 byte StartNextLatch time |
| Common mode voltage UCM | max. 10 V |
| Conversion time | min. 10 µs |
| Current consumption E-bus | typ. 200 mA |
| Current consumption power contacts | – |
| Distributed clock accuracy | << 1 µs |
| Distributed clocks | yes |
| Electrical isolation | 500 V (E-bus/signal voltage) |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Ex marking | ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc |
| Input filter cut-off frequency | 80 kHz |
| Input signal bandwidth | 0…30 kHz recommended |
| Internal resistance | typ. 85 Ω + diode voltage |
| Max. sampling rate | max. 10 µs/100 ksps (per channel, simultaneously) |
| Measurement error/uncertainty | < ±0.3% (relative to full scale value) up to 10 Hz input signal |
| Number of inputs | 2 (differential) |
| Operating Temperature | -25…+60°C |
| Oversampling factor | n = 1…100 selectable |
| Pluggable wiring level | for all ESxxxx terminals |
| Power Supply | via the E-bus |
| Protect. rating/installation pos. | IP20/variable |
| Relative Humidity | 95%, no condensation |
| Resolution | 16 bit (incl. sign) |
| Signal current | 0…20 mA |
| Special Features | oversampling |
| Storage Temperature | -40…+85°C |
| Surge voltage resistance | max. 35 V |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| Weight | approx. 60 g |
Frequently Asked Questions
How do I get pricing for EL3742?
KKM Solutions is a quote-based industrial supplier, so prices are not listed online. Send the quote form on this page with your quantity, or email orderdesk@kkmsolutions.com, and our order desk will reply with pricing and availability within 1 business day.
Who manufactures the EL3742?
EL3742 is a Beckhoff part. KKM Solutions sources Beckhoff components to the exact manufacturer specification and cross-checks every order against manufacturer part data before it ships.
What are the key specifications of EL3742?
Key specifications include Approvals/markings: CE, CCC, UL, ATEX, IECEx; Bit width in the process image: input: n x 2 x 16 bit data; optionally 2 x 16 bit cycle counter, 4 byte StartNextLatch time; Common mode voltage UCM: max. 10 V; Conversion time: min. 10 µs. The full specification table on this page lists every published attribute for this part.
How quickly can EL3742 ship?
In-stock items are dispatched the same business day for orders placed by 3 PM; sourced and quoted items ship per the quoted lead time. KKM Solutions ships worldwide — to your site, warehouse, or freight forwarder.
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