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The Pretium Bang Na, Unit 91/8
Moo.15 Bang Na-Trat Frontage Road
Bang Kaeo, Bang Phli District, Samut Prakan 10540, ประเทศไทย

+66 2117 4900
sales@beckhoff.co.th
www.beckhoff.com/th-th/

EP3744-1041 | EtherCAT Box, 4-channel analog input + 8-channel digital combi, pressure, 0…7000 hPa (0…+7 bar), M8

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EP3744-1041 | EtherCAT Box, 4-channel analog input + 8-channel digital combi, pressure, 0…7000 hPa (0…+7 bar), M8

EP3744-1041 | EtherCAT Box, 4-channel analog input + 8-channel digital combi, pressure, 0…7000 hPa (0…+7 bar), M8

EtherCAT signal input
EtherCAT signal output
M8 I/O connection sockets
Signal status display
Labeling areas
Pressure measurement,
6-mm fitting
Power supply status display:
Box supply (US)
Auxiliary voltage (UP)
Power supply feed
Power supply downstream
connection
1 | Tx+
2 | Rx+
3 | Rx-
4 | Tx-
1 | +24 V DC US
2 | Input
3 | GNDS
4 | Input
1 | +24 V DC US
2 | Output
3 | GNDS
4 | Input
1 | +24 V DC US
2 | +24 V DC UP
3 | GNDS
4 | GNDP
Socket 2 and 3
Socket 0 and 1
Top view 
I/O connection 
Connector assignment 
EP3744-1041 | EtherCAT Box, 4-channel analog input + 8-channel digital combi, pressure, 0…7000 hPa (0…+7 bar), M8

EP3744-1041 | EtherCAT Box, 4-channel analog input + 8-channel digital combi, pressure, 0…7000 hPa (0…+7 bar), M8

Measurement technology easily configured: Analog EtherCAT input terminals.

Measurement technology easily configured: Analog EtherCAT input terminals.

The EP3744-1041 EtherCAT Box, equipped with six digital inputs, two digital outputs and four pressure inputs, acquires these signals and transmits them – electrically isolated – to the controller. The signal status is indicated by LEDs; the digital signals are connected via 4-pin M8 screw type connectors.

The pressure is measured as the differential pressure to the fifth connection by an integrated 6 mm fitting. The pressure values are available as 16-bit values. Measurement can be made between -7…7 bar, with the value being output in relation to the fifth connection, e.g. for vacuum measurement in relation to the ambient pressure at suction grippers. In absolute-pressure mode it is possible to measure pressures between 0…7 bar.

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:

regular delivery

Product information

Technical dataEP3744-1041
ProtocolEtherCAT
Bus interface2 x M8 socket, 4-pin, a-coded, shielded
Number of inputs4 x pressure, 6 x digital
Number of outputs2 x digital
Connection methoddigital signals: 4-pin M8; pressure measurement: 6 mm fitting
Conversion time~ 3.5 ms
Resolution1 mbar per digit
Signal typeair pressure
Measuring range0…7 bar (0…100 psi)/
-7…7 bar (-100…100 psi)
Measurement error/uncertainty3%
Distributed clocksyes
Input filter10 µs (for digital inputs)
SpecificationEN 61131-2, type 1/3
Max. output current0.5 A per channel, individually short-circuit proof
Load typeohmic, inductive, lamp load
Short-circuit currenttyp. 1.5 A
Sensor supplyfrom load supply voltage, max. 0.5 A, short-circuit proof in total
Current consumption from US120 mA
Power supply connectionfeed: 1 x M8 male socket, 4-pin, a-coded; downstream connection: 1 x M8 female socket, 4-pin, a-coded
Electrical isolation500 V
Special featuresdirect pressure measurement at the machine
Operating/storage temperature-25…+60°C/-40…+85°C
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Protect. rating/installation pos.IP65/66/67 (conforms to EN 60529)/variable
Approvals/markingsCE, UL
Housing data8 x M8, 4 x M12
Dimensions (W x H x D)30 mm x 126 mm x 26.5 mm
MaterialPA6 (polyamide)
Installation2 fixing holes 3.5 mm diameter for M3

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