EL3351 | EtherCAT Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit
the strain gauge can be
drawn from the outputs
+UV and -UV of the terminal
(5 V) or it can be supplied
from an external source.
With external strain gauge
supply only max. ±12 V
are permitted.
EL3351 | EtherCAT Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit
Measurement technology easily configured: Analog EtherCAT input terminals.
Measurement technology simply integrated: With the analog EtherCAT Terminals.
Precise strain measurement in the I/O system
The EL3351 analog input terminal permits direct connection of a resistor bridge. The bridge voltage, UD, and the supply voltage, UREF, to the bridge are digitized with a 16-bit resolution, and are transmitted along an electrically isolated channel to the supervising automation system. The input channels are available in the form of two 16-bit values for further processing. The resulting measurement can be calculated from the formula: measurement = UD/UREF. Precise acquisition of the supply voltage along with the bridge voltage compensates for long-term and temperature drift.
Product status:
regular delivery
Product information
| Technical data | EL3351 |
|---|---|
| Number of inputs | 2, for 1 resistor bridge in full bridge technology |
| Power supply | via the E-bus |
| Distributed clocks | – |
| Measuring range UD | max. -20…+20 mV |
| Measuring range UREF | max. -12…+12 V |
| Internal resistance | > 200 kΩ (UREF), > 1 MΩ (UD) |
| Supported nominal sensitivity | calculated in PLC, freely selectable |
| Input filter limit frequency | 50 Hz default setting, parameterizable |
| Conversion time | 2.5…800 ms, configurable, max. 400 samples/s |
| Power supply UV | 5 V, max. 20 mA |
| Resolution | 16 bit, 32 bit presentation |
| Filter | 50 Hz, configurable |
| Measurement error/uncertainty | < ±0.1% (relative to full scale value, 50 Hz filter) |
| Current consumption E-bus | typ. 170 mA |
| Current consumption power contacts | – |
| Special features | integrated 5 V DC bridge supply |
| Weight | approx. 60 g |
| Operating temperature | -25…+55°C |
| Storage temperature | -40…+85°C |
| Relative humidity | 95%, no condensation |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Pluggable wiring | for all ESxxxx terminals |
| Protect. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, CCC, UL, ATEX, IECEx |
| Ex marking | ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc |
| Housing data | EL-12-8pin | ES-12-8pin |
|---|---|---|
| Design form | compact terminal housing with signal LEDs | terminal housing with pluggable wiring level |
| Material | polycarbonate | |
| Installation | on 35 mm DIN rail, conforming to EN 60715 with lock | |
| Side by side mounting by means of | double slot and key connection | |
| Marking | labeling of the BZxxxx series | |
| Wiring | solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver | |
| Connection cross-section | s*: 0.08…2.5 mm², st*: 0.08…2.5 mm², f*: 0.14…1.5 mm² | s*: 0.08…1.5 mm², st*: 0.08…1.5 mm², f*: 0.14…1.5 mm² |
| Connection cross-section AWG | s*: AWG28…14, st*: AWG28…14, f*: AWG26…16 | s*: AWG28…16, st*: AWG28…16, f*: AWG26…16 |
| Stripping length | 8…9 mm | 9…10 mm |
| Current load power contacts | Imax: 10 A | |
| Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm | |
*s: solid wire; st: stranded wire; f: with ferrule
| Ordering information | |
|---|---|
| EL3351 | EtherCAT Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit |
| ES3351 | EtherCAT Terminal, 1-channel analog input, measuring bridge, full bridge, 16 bit, plug-in wiring level |
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