Manufacturer: BECKHOFF
Product No.: EPP3744-0041
Country of origin:Germany
Product Type: EtherCAT P I/O Modules
Payment: T/T, Western Union
Weight: 500g
Dimensions: 150 x 60 x 40 mm
Shipping port: Xiamen
Warranty: 12 months
Integrating pneumatic diagnostics directly into the field level, the Beckhoff EPP3744-0041 EtherCAT P Box provides a decentralized interface for both digital signals and direct air pressure measurement. This rugged, IP67-rated module combines four relative pressure inputs, six digital inputs, and two digital outputs into a single compact housing, eliminating the need for protective control enclosures and reducing field wiring complexity.
| Parameter | Specification |
|---|---|
| Manufacturer | Beckhoff Automation GmbH & Co. KG |
| Model / Article Number | EPP3744-0041 |
| Protocol | EtherCAT P |
| Bus Interface | 2 x M8 socket, shielded, screw type, P-coded |
| Number of Inputs | 4 x pressure inputs, 6 x digital inputs |
| Number of Outputs | 2 x digital outputs |
| Connection Method (I/O) | Digital: 4-pin M8; Pressure: 6 mm push-in fitting |
| Measuring Range | -1 to 1 bar (-15 to 15 psi) / 0 to 1 bar (0 to 15 psi) relative pressure |
| Resolution | 1 mbar per digit |
| Measurement Uncertainty | 3 percent of full scale |
| Conversion Time | approximately 3.5 ms |
| Nominal Voltage | 24 V DC (-15 percent / +20 percent) |
| Current Consumption (Us) | 100 mA typical |
| Max. Output Current | 0.5 A per channel (short-circuit proof) |
| Electrical Isolation | 500 V |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Protection Rating | IP65 / IP66 / IP67 (conforms to EN 60529) |
| Approvals | CE, UL |
| Country of Origin | Germany |
| Shipping Weight (Calculated) | 0.35 kg (Net: 0.15 kg) |
| Package Dimensions (Calculated) | 150 x 60 x 40 mm |
| Connector / Terminal | Pin / Connection | Function / Circuit Assignment |
|---|---|---|
| EtherCAT P (M8 P-coded) | Pin 1 | Us+ (24 V DC system and sensor supply) |
| Pin 2 | Up+ (24 V DC peripheral voltage for actuators) | |
| Pin 3 | Us- (GND for system and sensor supply) | |
| Pin 4 | Up- (GND for peripheral voltage) | |
| Digital I/O (M8 4-pin) | Pin 1 | +24 V DC sensor supply (derived from Us) |
| Pin 2 | Input / Output Channel B | |
| Pin 3 | GND | |
| Pin 4 | Input / Output Channel A | |
| Pneumatic Ports | Ports 1 to 4 | 6 mm push-in fittings for relative air pressure measurement |
The EPP3744-0041 is an EtherCAT P device and must not be connected to standard EtherCAT (EP series) ports without an intermediate junction or injector module (such as the EP9224-0002). Standard EtherCAT uses D-coded M8 connectors, whereas EtherCAT P utilizes P-coded M8 connectors to prevent accidental cross-wiring of combined power and data lines.
When deploying the module in high-humidity environments, ensure that the compressed air supplied to the 6 mm pneumatic fittings is thoroughly dried and filtered. Liquid condensation or oil mist entering the internal silicon pressure sensors will cause calibration drift, measurement offsets, or permanent sensor element failure.
Always calculate the total current draw of the EtherCAT P segment in TwinCAT 3 before physical commissioning. The combined current for Us and Up must not exceed 3 A per branch. If voltage drops below 20.4 V DC at the end of a daisy chain, install an EP9224 power feed-in box to boost the supply.
Disconnect all electrical power sources (Us and Up) and completely depressurize the pneumatic lines before mounting, wiring, or servicing this module. Failure to do so can result in equipment damage, unexpected actuator movement, or physical injury from high-velocity pneumatic tubing ejection.
Mount the module to a flat, vibration-resistant machine surface using two M3 screws. Torque to 0.8 Nm.
Insert clean, square-cut 6 mm pneumatic tubing into the push-in fittings until it bottoms out securely.
Connect the M8 P-coded EtherCAT P cables. Tighten the screw connections to 0.4 Nm to guarantee the IP67 environmental seal.
Connect digital sensors and actuators to the M8 I/O ports using shielded cables to minimize electromagnetic interference.
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Returns & Warranty
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|
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