{"product_id":"beckhoff-epp3174-0002-ethercat-p-box-4-channel-analog-input-module","title":"Beckhoff EPP3174-0002 EtherCAT P Box 4-channel Analog Input Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nProcessing critical field measurements in harsh environments is achieved with the Beckhoff EPP3174-0002, which integrates four \u003cstrong\u003eparameterizable differential analog inputs\u003c\/strong\u003e into a single, compact IP67 housing. Operating directly over \u003cstrong\u003eEtherCAT P\u003c\/strong\u003e, 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.\n\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eMulti-Signal Compatibility:\u003c\/strong\u003e Supports both voltage (-10 V to +10 V) and current (0 to 20 mA, 4 to 20 mA) interfaces, configurable per channel via CoE.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eSingle-Cable EtherCAT P Technology:\u003c\/strong\u003e Combines EtherCAT communication and power supply (US\/UP) in one M8 connector system.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eHigh Resolution:\u003c\/strong\u003e Operates at 16-bit analog-to-digital resolution (including sign) for high-accuracy operations.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eRobust IP-Rated Construction:\u003c\/strong\u003e Fully encapsulated zinc die-cast housing rated for IP65, IP66, and IP67 industrial environments.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eAdvanced Diagnostics:\u003c\/strong\u003e Features built-in status LEDs indicating operational states, network communication, and error conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIndustrial Applications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eDe-centralized Field Control:\u003c\/strong\u003e Interfacing analog sensors directly on machinery without control cabinets.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eProcess Automation:\u003c\/strong\u003e Precision flow, pressure, and temperature monitoring in harsh chemical or water treatment facilities.\u003c\/li\u003e\n  \u003cli style=\"margin-bottom: 0.5rem;\"\u003e\n\u003cstrong\u003eAssembly and Handling Systems:\u003c\/strong\u003e Multi-axis positioning systems requiring distributed analog feedback loops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0; font-size: 0.95rem;\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold; width: 30%;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eBeckhoff Automation GmbH \u0026amp; Co. KG\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eModel \/ SKU\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eEPP3174-0002\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eInputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e4 differential analog inputs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eSignal Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e-10 V to +10 V, 0 to 20 mA, 4 to 20 mA (individually parameterizable)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eResolution\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e16 bits (including sign)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eConversion Time\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eapprox. 100 microseconds\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eMeasurement Uncertainty\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e\u0026lt; +-0.3% (relative to full scale value)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eInternal Resistance\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e\u0026gt; 200 kOhm (voltage) | typ. 85 Ohm + diode voltage (current)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eCommon-Mode Voltage (UCM)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003emax. 35 V\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eInput Filter Limit\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e5 kHz (configurable)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eEtherCAT Connection\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e2 x M8 socket, shielded, screw-type, P-coded\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eInput Interface\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eM12 x 1, 5-pin, A-coded\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eSensor Power Supply\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eDerived from UP (load supply voltage)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eCurrent Consumption (US)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003etyp. 100 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eIsolation Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e500 V (electrical isolation)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e-25 to +60 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eStorage Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e-40 to +85 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eProtection Class\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eIP65 \/ IP66 \/ IP67 (conforms to EN 60529)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eApprovals\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eCE, UL\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eGermany\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e0.35 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections \u0026amp; Pin Assignments\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0; font-size: 0.95rem;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #cbd5e0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; border: 1px solid #e2e8f0; text-align: left; font-weight: bold;\"\u003eM12 Connection (Input Channels)\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; border: 1px solid #e2e8f0; text-align: left; font-weight: bold;\"\u003ePin Number\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; border: 1px solid #e2e8f0; text-align: left; font-weight: bold;\"\u003eSignal Assignment\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd rowspan=\"5\" style=\"padding: 0.75rem; border: 1px solid #e2e8f0; font-weight: bold;\"\u003eAnalog Inputs (Channels 1 to 4)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003ePin 1\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003e+24 V DC Sensor Supply (UP)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003ePin 2\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eInput + (Differential Positive)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003ePin 3\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eGND Sensor Supply\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003ePin 4\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eInput - (Differential Negative)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003ePin 5\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem; border: 1px solid #e2e8f0;\"\u003eShielding \/ Functional Earth\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nThe \u003cstrong\u003eEPP3174-0002\u003c\/strong\u003e operates strictly under the \u003cstrong\u003eEtherCAT P\u003c\/strong\u003e physical layer. It is not a direct physical drop-in replacement for the standard \u003cstrong\u003eEP3174-0002\u003c\/strong\u003e (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 \u003cem\u003eEPP3174-0002\u003c\/em\u003e is loaded into TwinCAT System Manager to prevent communication handshake failure.\n\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nBecause the device derives its power directly from the \u003cstrong\u003eEtherCAT P M8 trunk line\u003c\/strong\u003e, system designers must complete a strict current-carrying capacity calculation. The maximum total current for the \u003cstrong\u003eUS (system and sensor power)\u003c\/strong\u003e and \u003cstrong\u003eUP (peripheral load voltage)\u003c\/strong\u003e 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.\n\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003e\nTo transition each input channel between voltage (-10\/+10V) and current (4...20mA) operation modes, utilize the \u003cstrong\u003eCoE (CAN over EtherCAT)\u003c\/strong\u003e configuration matrix in TwinCAT. Modify index \u003cstrong\u003e0x8000\u003c\/strong\u003e (Channel 1) through \u003cstrong\u003e0x8030\u003c\/strong\u003e (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.\n\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; border-radius: 4px;\"\u003e\n  \u003cp style=\"margin: 0; font-weight: bold; color: #9b2c2c;\"\u003eCRITICAL WARNING\u003c\/p\u003e\n  \u003cp style=\"margin: 0.5rem 0 0 0; color: #742a2a; font-size: 0.95rem;\"\u003e\n    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.\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 2rem; height: 2rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 0.95rem;\"\u003e1\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; font-size: 0.95rem; padding-top: 0.2rem;\"\u003e\n      \u003cstrong\u003eMechanical Mounting:\u003c\/strong\u003e Securely mount the zinc die-cast box to the machinery or mounting plate using two M4 bolts. Verify a low-resistance contact between the mounting tabs and the machine frame to ensure proper functional grounding.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 2rem; height: 2rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 0.95rem;\"\u003e2\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; font-size: 0.95rem; padding-top: 0.2rem;\"\u003e\n      \u003cstrong\u003eBus Cabling:\u003c\/strong\u003e Align and connect the incoming P-coded EtherCAT P M8 cable to the \u003cstrong\u003eIN\u003c\/strong\u003e port. Link downstream nodes from the \u003cstrong\u003eOUT\u003c\/strong\u003e port using standardized, shielded M8 cables. Screw down completely to ensure the IP67 seal.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 2rem; height: 2rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 0.95rem;\"\u003e3\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; font-size: 0.95rem; padding-top: 0.2rem;\"\u003e\n      \u003cstrong\u003eSensor Integration:\u003c\/strong\u003e Wire the analog field transmitters into the M12 5-pin inputs. Standardize on shielding connections through Pin 5. Seal any unused ports with authentic M12 sealing caps to maintain the ingress rating.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; min-width: 2rem; height: 2rem; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 0.95rem;\"\u003e4\u003c\/div\u003e\n    \u003cdiv style=\"color: #2d3748; font-size: 0.95rem; padding-top: 0.2rem;\"\u003e\n      \u003cstrong\u003eNetwork Configuration:\u003c\/strong\u003e Power up the controller. Perform an online scan in the TwinCAT System Manager, find the node under the EtherCAT Master tree, and verify state transition to 'OP' (Operational) mode.\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106469634411,"sku":"EPP3174-0002","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/epp3174-0002-ntcs2y3ssgr.png?v=1776244748","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-epp3174-0002-ethercat-p-box-4-channel-analog-input-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}