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EL3201 | 1-channel input terminal PT100 (RTD) for 2-, 3- or 4-wire connection

The EL3201 analog input terminal allows resistance sensors to be connected directly. The EtherCAT Terminal circuitry can operate 2-, 3- and 4-wire sensors (also in the 2-channel version EL3202-0010). A microprocessor handles linearisation across the whole temperature range, which is freely selectable. The EtherCAT Terminal’s standard settings are: resolution 0.1 °C in the temperature range of PT100 sensors in 3-wire connection. The EtherCAT Terminals indicate their signal state by means of light emitting diodes. Sensor malfunctions such as broken wires are indicated by error LEDs.

Technical data EL3201 | ES3201
Number of inputs 1
Power supply via the E-bus
Distributed clocks
Input filter limit frequency typ. 1 kHz
Sensor types PT100, PT200, PT500, PT1000, Ni100, Ni120, Ni1000 resistance measurement (e.g. potentiometer, 10 Ω…1.2/4 kΩ), KTY sensors (types see documentation)
Connection method 2-, 3-, 4-wire
Resolution 0.1 °C per digit
Conversion time approx. 24 ms default setting, 4…500 ms configurable
Measuring current ≤ 0.5 mA (load-dependent)
Measuring error ≤ ±0.5 °C for PT sensors
Electrical isolation 500 V (E-bus/signal voltage)
Current consumption power contacts
Current consumption E-bus typ. 190 mA
Bit width in the process image 1 x 32 bit RTD input
Special features integrated digital filter, limit value monitoring, variable connection technology
Weight approx. 60 g
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27/29
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/variable
Pluggable wiring for all ESxxxx terminals
Approvals CE, UL, Ex

Special terminals  
EL3201-0010 1-channel analog input terminal, PT100 (RTD), 16 bits, high-precision
EL3201-0020 1-channel analog input terminal, PT100 (RTD), 16 bits, high-precision, with calibration certificate