What Is SCADA? Supervisory Control Without Replacing the PLC
SCADA sits above PLCs and RTUs: it acquires field data, alarms operators, and issues supervisory commands across plants and remote assets—without replacing local deterministic control.

Designed for high-precision temperature sensing in distributed control architectures, the Beckhoff EJ3202 is a dual-channel EtherCAT plug-in module designed for direct mounting on application-specific signal distribution boards. This space-saving module enables direct connection of Resistance Temperature Detectors (RTD) using 2-wire or 3-wire cabling methods. By supporting a broad range of RTD sensors like Pt100, Pt1000, and Ni100, the module delivers highly accurate temperature measurement capabilities directly into the EtherCAT communication network, making it highly suitable for demanding industrial machinery and automation environments.
| Manufacturer | Beckhoff |
| Part Number / Model | EJ3202 |
| Technology | Temperature measurement (RTD) |
| Number of Inputs | 2 |
| Connection Method | 2- or 3-wire (default: 2-wire) |
| Sensor Types | Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000, resistance measurement (e.g. potentiometer 10 Ohm to 1/4 kOhm), KTY sensors |
| Measuring Range | -200 to +850 degC (Pt sensors); -60 to +250 degC (Ni sensors) |
| Resolution | 0.1 degC per digit |
| Measurement Error / Uncertainty | < +/-0.5 degC for Pt sensors |
| Input Filter Limit Frequency | typ. 1 kHz |
| Conversion Time | approx. 85 ms default setting (2 to 800 ms configurable) |
| Power Supply | via the E-bus |
| Current Consumption E-bus | typ. 165 mA |
| Electrical Isolation | 500 V (E-bus/field potential) |
| Special Features | Integrated digital filter, limit value monitoring, variable connection technology |
| Weight | approx. 30 g |
| Operating Temperature | -25 to +60 degC |
| Storage Temperature | -40 to +85 degC |
| Relative Humidity | 95 %, non-condensing |
| EMC Immunity/Emission | Conforms to EN 61000-6-2/EN 61000-6-4 |
| Vibration/Shock Resistance | Conforms to EN 60068-2-6/EN 60068-2-27 |
| Protection Rating | IP20 |
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| Country of origin |
Germany
|