Replacing Yokogawa AAI835: Wiring and Barrier Checks Before Swap
Before replacing a Yokogawa AAI835, verify the 4-in/4-out channel map, power-loss loop behavior, barrier type, output load, cable, and redundancy.
Manufacturer: BECKHOFF
Product No.: EPP3314-0002
Country of origin:Germany
Product Type: EtherCAT Modules
Payment: T/T, Western Union
Weight: 165g
Dimensions: 12.6 x 3 x 3 cm
Shipping port: Xiamen
Warranty: 12 months
The BECKHOFF EPP3314-0002 is a 4-channel thermocouple EtherCAT P Box designed for precise temperature measurement in industrial automation environments. This robust IP65/66/67 rated module acquires signals directly from industrial thermocouples and millivolt sources, transmitting the digitized data via the high-speed EtherCAT network. It integrates into decentralized machine topologies without requiring a control cabinet.
Equipped with M12 connection technology for 2-wire thermocouple sensors and M8 sockets for EtherCAT P communication, the EPP3314-0002 combines power supply and communication in a single cable. It supports a wide array of thermocouple types and features configurable input filters and open-circuit recognition to ensure reliable process monitoring.
| Parameter | Specification |
|---|---|
| Manufacturer | BECKHOFF |
| Exact Model | EPP3314-0002 |
| Product Type | EtherCAT P Box |
| Protocol | EtherCAT |
| Country of Origin | Germany |
| Parameter | Specification |
|---|---|
| Number of Inputs | 4 channels (thermocouple or mV measurement) |
| Sensor Types | Types J, K, L, B, E, N, R, S, T, U (default setting type K), mV measurement |
| Measuring Range | Depending on sensor type; preset value is type K, -100 to +1370 degC |
| Resolution | 0.1 degC per digit |
| Measurement Error / Uncertainty | < ±0.3 % for type K (relative to full scale value) |
| Conversion Time | 2.5 s down to 20 ms (default: approx. 250 ms) |
| Input Filter | 5 variations, configurable |
| Special Features | Open-circuit recognition |
| Parameter | Specification |
|---|---|
| Nominal Voltage | 24 V DC (-15 % / +20 %) |
| Current Consumption from US | Typ. 100 mA |
| Electrical Isolation | 500 V |
| Parameter | Specification |
|---|---|
| Bus Interface | 2 x M8 socket, shielded, screw type, P-coded |
| Connection Method (Sensors) | M12 screw type for 2-wire connection |
| Parameter | Specification |
|---|---|
| Protection Rating | IP65, IP66, IP67 (conforms to EN 60529) |
| Installation Position | Variable |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| 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 |
| Net Weight | Approx. 165 g |
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Returns & Warranty

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Returns & Warranty
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| Country of origin |
Germany
|