EP3744-2041 | EtherCAT Box, 4-channel analog input + 8-channel digital combi, pressure, 0…1000 hPa (0…+1 bar), high-precision, M8
6-mm fitting
connection
2 | Rx+
3 | Rx-
4 | Tx-
2 | Input
3 | GNDS
4 | Input
2 | Output
3 | GNDS
4 | Input
2 | +24 V DC UP
3 | GNDS
4 | GNDP
EP3744-2041 | EtherCAT Box, 4-channel analog input + 8-channel digital combi, pressure, 0…1000 hPa (0…+1 bar), high-precision, M8
The EP3744-2041 EtherCAT Box, with six digital inputs, two digital outputs, and four pressure inputs, acquires these signals and transmits them to the controller under electrical isolation. The signal status is indicated by LEDs, while the signal interface for the digital signals utilizes 4-pin M8 screw type connectors.
The pressure is measured as an absolute value or as a differential pressure measurement relative to the fifth connection via an integrated 6 mm fitting. The pressure values are available as 16-bit values. Measurement can take place between -1 and +1 bar, with the value output relative to the fifth connection – for instance, for vacuum measurement compared to the ambient pressure at the suction grippers. In absolute pressure mode, pressures between 0 and 1 bar can be measured.
The operating mode is preselected via CoE parameters. If the supply voltages fall below a certain level (< 18.5 V) a diagnostic bit is set.
Product status:
product announcement | estimated market release 1st quarter 2025
Product information
| Technical data | EP3744-2041 |
|---|---|
| Protocol | EtherCAT |
| Bus interface | 2 x M8 socket, 4-pin, a-coded, shielded |
| Number of inputs | 4 x pressure, 6 x digital |
| Number of outputs | 2 x digital |
| Connection method | digital signals: 4-pin M8; pressure measurement: 6 mm fitting |
| Conversion time | ~ 3.5 ms |
| Resolution | 1 mbar per digit |
| Signal type | air pressure |
| Measuring range | 0…1 bar (0…15 psi)/
-1…1 bar (-15…15 psi) |
| Measurement error/uncertainty | 1% |
| Distributed clocks | yes |
| Input filter | 10 µs (for digital inputs) |
| Specification | EN 61131-2, type 1/3 |
| Max. output current | 0.5 A per channel, individually short-circuit proof |
| Load type | ohmic, inductive, lamp load |
| Short-circuit current | typ. 1.5 A |
| Sensor supply | from load supply voltage, max. 0.5 A, short-circuit proof in total |
| Current consumption from US | 120 mA |
| Power supply connection | feed: 1 x M8 male socket, 4-pin, a-coded; downstream connection: 1 x M8 female socket, 4-pin, a-coded |
| Electrical isolation | 500 V |
| Special features | direct pressure measurement at the machine |
| Operating/storage temperature | -25…+60°C/-40…+85°C |
| 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 |
| Protect. rating/installation pos. | IP65/66/67 (conforms to EN 60529)/variable |
| Approvals/markings | CE, UL |
| Housing data | 8 x M8, 4 x M12 |
|---|---|
| Dimensions (W x H x D) | 30 mm x 126 mm x 26.5 mm |
| Material | PA6 (polyamide) |
| Installation | 2 fixing holes 3.5 mm diameter for M3 |
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