Processing critical field measurements in harsh environments is achieved with the Beckhoff EPP3174-0002, which integrates four parameterizable differential analog inputs into a single, compact IP67 housing. Operating directly over EtherCAT P, this module combines high-speed communication and peripheral power lines (US and UP) into a single, specialized M8 connection, eliminating redundant cabling layouts and reducing overall installation footprints.
| Manufacturer | Beckhoff Automation GmbH & Co. KG |
| Model / SKU | EPP3174-0002 |
| Inputs | 4 differential analog inputs |
| Signal Type | -10 V to +10 V, 0 to 20 mA, 4 to 20 mA (individually parameterizable) |
| Resolution | 16 bits (including sign) |
| Conversion Time | approx. 100 microseconds |
| Measurement Uncertainty | < +-0.3% (relative to full scale value) |
| Internal Resistance | > 200 kOhm (voltage) | typ. 85 Ohm + diode voltage (current) |
| Common-Mode Voltage (UCM) | max. 35 V |
| Input Filter Limit | 5 kHz (configurable) |
| EtherCAT Connection | 2 x M8 socket, shielded, screw-type, P-coded |
| Input Interface | M12 x 1, 5-pin, A-coded |
| Sensor Power Supply | Derived from UP (load supply voltage) |
| Current Consumption (US) | typ. 100 mA |
| Isolation Voltage | 500 V (electrical isolation) |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Protection Class | IP65 / IP66 / IP67 (conforms to EN 60529) |
| Approvals | CE, UL |
| Country of Origin | Germany |
| Shipping Weight (Calculated) | 0.35 kg |
| M12 Connection (Input Channels) | Pin Number | Signal Assignment |
|---|---|---|
| Analog Inputs (Channels 1 to 4) | Pin 1 | +24 V DC Sensor Supply (UP) |
| Pin 2 | Input + (Differential Positive) | |
| Pin 3 | GND Sensor Supply | |
| Pin 4 | Input - (Differential Negative) | |
| Pin 5 | Shielding / Functional Earth |
The EPP3174-0002 operates strictly under the EtherCAT P physical layer. It is not a direct physical drop-in replacement for the standard EP3174-0002 (standard EtherCAT), despite sharing identical internal register maps. When integrating into standard EtherCAT networks, a physical media transition module (e.g., Beckhoff EK1310 or EP9224) is required. Ensure the exact XML (ESI) description file matching EPP3174-0002 is loaded into TwinCAT System Manager to prevent communication handshake failure.
Because the device derives its power directly from the EtherCAT P M8 trunk line, system designers must complete a strict current-carrying capacity calculation. The maximum total current for the US (system and sensor power) and UP (peripheral load voltage) feeds must not exceed 3.0 A per daisy-chain path. When cascading multiple EPP units, long physical cable lengths can introduce significant DC voltage drops, which can degrade the accuracy of the 24 V DC sensor supply outputs at the M12 interfaces.
To transition each input channel between voltage (-10/+10V) and current (4...20mA) operation modes, utilize the CoE (CAN over EtherCAT) configuration matrix in TwinCAT. Modify index 0x8000 (Channel 1) through 0x8030 (Channel 4) to specify the desired measurement range. For highly sensitive current loops, run high-shielded industrial twisted-pair cabling and ensure the M12 metal coupling nut is firmly secured to guarantee complete shield continuity through the chassis ground.
CRITICAL WARNING
Disconnect all active power supplies from the EtherCAT P line (both US and UP lines) before attempting to plug or unplug the M8 and M12 field connectors. Inserting or removing connections under load can cause electrical arcing, resulting in permanent damage to the delicate internal transceiver logic and the destruction of the physical P-coded contacts.
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Manufacturer: BECKHOFF
Product No.: EPP3174-0002
Country of origin:Germany
Product Type: EtherCAT P Box Modules
Payment: T/T, Western Union
Weight: 500g
Shipping port: Xiamen
Warranty: 12 months
Processing critical field measurements in harsh environments is achieved with the Beckhoff EPP3174-0002, which integrates four parameterizable differential analog inputs into a single, compact IP67 housing. Operating directly over EtherCAT P, this module combines high-speed communication and peripheral power lines (US and UP) into a single, specialized M8 connection, eliminating redundant cabling layouts and reducing overall installation footprints.
| Manufacturer | Beckhoff Automation GmbH & Co. KG |
| Model / SKU | EPP3174-0002 |
| Inputs | 4 differential analog inputs |
| Signal Type | -10 V to +10 V, 0 to 20 mA, 4 to 20 mA (individually parameterizable) |
| Resolution | 16 bits (including sign) |
| Conversion Time | approx. 100 microseconds |
| Measurement Uncertainty | < +-0.3% (relative to full scale value) |
| Internal Resistance | > 200 kOhm (voltage) | typ. 85 Ohm + diode voltage (current) |
| Common-Mode Voltage (UCM) | max. 35 V |
| Input Filter Limit | 5 kHz (configurable) |
| EtherCAT Connection | 2 x M8 socket, shielded, screw-type, P-coded |
| Input Interface | M12 x 1, 5-pin, A-coded |
| Sensor Power Supply | Derived from UP (load supply voltage) |
| Current Consumption (US) | typ. 100 mA |
| Isolation Voltage | 500 V (electrical isolation) |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Protection Class | IP65 / IP66 / IP67 (conforms to EN 60529) |
| Approvals | CE, UL |
| Country of Origin | Germany |
| Shipping Weight (Calculated) | 0.35 kg |
| M12 Connection (Input Channels) | Pin Number | Signal Assignment |
|---|---|---|
| Analog Inputs (Channels 1 to 4) | Pin 1 | +24 V DC Sensor Supply (UP) |
| Pin 2 | Input + (Differential Positive) | |
| Pin 3 | GND Sensor Supply | |
| Pin 4 | Input - (Differential Negative) | |
| Pin 5 | Shielding / Functional Earth |
The EPP3174-0002 operates strictly under the EtherCAT P physical layer. It is not a direct physical drop-in replacement for the standard EP3174-0002 (standard EtherCAT), despite sharing identical internal register maps. When integrating into standard EtherCAT networks, a physical media transition module (e.g., Beckhoff EK1310 or EP9224) is required. Ensure the exact XML (ESI) description file matching EPP3174-0002 is loaded into TwinCAT System Manager to prevent communication handshake failure.
Because the device derives its power directly from the EtherCAT P M8 trunk line, system designers must complete a strict current-carrying capacity calculation. The maximum total current for the US (system and sensor power) and UP (peripheral load voltage) feeds must not exceed 3.0 A per daisy-chain path. When cascading multiple EPP units, long physical cable lengths can introduce significant DC voltage drops, which can degrade the accuracy of the 24 V DC sensor supply outputs at the M12 interfaces.
To transition each input channel between voltage (-10/+10V) and current (4...20mA) operation modes, utilize the CoE (CAN over EtherCAT) configuration matrix in TwinCAT. Modify index 0x8000 (Channel 1) through 0x8030 (Channel 4) to specify the desired measurement range. For highly sensitive current loops, run high-shielded industrial twisted-pair cabling and ensure the M12 metal coupling nut is firmly secured to guarantee complete shield continuity through the chassis ground.
CRITICAL WARNING
Disconnect all active power supplies from the EtherCAT P line (both US and UP lines) before attempting to plug or unplug the M8 and M12 field connectors. Inserting or removing connections under load can cause electrical arcing, resulting in permanent damage to the delicate internal transceiver logic and the destruction of the physical P-coded contacts.
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Returns & Warranty
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| Country of origin |
Germany
|
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