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Beckhoff Automation Pty. Ltd.

Building 4, 163–179 Forster Road
Mount Waverley, VIC 3149, Australia

+61 3 9912 5430
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www.beckhoff.com/en-au/

ER3204-0002 | EtherCAT Box, 4-channel analog input, temperature, RTD (Pt100), 16 bit, M12, zinc die-cast

ER3204-0002 | EtherCAT Box, 4-channel analog input, temperature, RTD (Pt100), 16 bit, M12, zinc die-cast

ER3204-0002 | EtherCAT Box, 4-channel analog input, temperature, RTD (Pt100), 16 bit, M12, zinc die-cast

EtherCAT signal input
EtherCAT signal output
M12 I/O connection sockets
Signal status display
Labeling areas
Power supply status display:
Box supply (US)
Auxiliary voltage (UP)
Power supply feed
Power supply downstream
connection
1 | Tx+
2 | Rx+
3 | Rx-
4 | Tx-
1 | RL+
2 | R+
3 | RL-
4 | R-
5 | Shield
1 | +24 V DC US
2 | +24 V DC UP
3 | GNDS
4 | GNDP
2-wire
3-wire
4-wire
Top view 
I/O connection 
Connector assignment 
ER3204-0002 | EtherCAT Box, 4-channel analog input, temperature, RTD (Pt100), 16 bit, M12, zinc die-cast

ER3204-0002 | EtherCAT Box, 4-channel analog input, temperature, RTD (Pt100), 16 bit, M12, zinc die-cast

The ER3204-0002 EtherCAT Box with analog inputs allows resistance sensors to be connected directly. The module’s circuitry can operate the sensors using 2-, 3- or 4-wire connection techniques. Linearization over the full temperature range is realized with the aid of a microprocessor. The temperature range can be selected freely. The module can also be used for simple resistance measurement with the output in ohms. The module’s standard settings are: resolution 0.1 °C in the temperature range of Pt100 sensors in 2-wire connection. Sensor malfunctions such as broken wires are indicated by error LEDs. The module is quite versatile, but the default values are selected in such a way that in most cases it is not necessary to perform configuration. The input filter and associated conversion times can be set within a wide range; several data output formats may be chosen. If required, the inputs can be scaled differently. Automatic limit monitoring is also available. Parameterization is carried out via EtherCAT.

The EtherCAT Box modules with zinc die-cast housing are ready for use in harsh industrial and process environments. With the fully sealed design and metal surfaces the ER series is ideal for applications requiring enhanced load capacity and protection against weld spatter, for example.

Product status:

regular delivery

Product information

Technical dataER3204-0002
ProtocolEtherCAT
Bus interface2 x M8 socket, shielded, screw type
Number of inputs4
Connection methodscrew type M12 for 2-, 3- and 4-wire connections, presetting: 2-wire
Sensor typesPt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000, resistance measurement (e.g. potentiometer, 10 Ω…1.2/4 kΩ)
Signal typePt100
Measuring range-200…+850 °C (Pt sensors); -60…+250 °C (Ni sensors)
Resolution0.1 °C per digit
Measurement error/ uncertainty< ±0.5 °C (Pt sensors in 4-wire connection)
Conversion time800 ms up to 2 ms, see documentation, default: approx. 85 ms
Nominal voltage24 V DC (-15 %/+20 %)
Distributed clocks
Measuring currenttyp. 0.5 mA
Input filter5 variations, configurable
Sensor supply
Current consumption from US120 mA
Power supply connectionfeed: 1 x M8 male socket, 4-pin; downstream connection: 1 x M8 female socket, 4-pin
Electrical isolation500 V
Special featuresopen-circuit recognition
Operating/storage temperature-25…+60 °C/-40…+85 °C
Weightapprox. 265 g
Vibration/shock resistanceconforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emissionconforms to EN 61000-6-2/EN 61000-6-4
Protect. rating/installation pos.IP65/66/67 (conforms to EN 60529)/variable
Approvals/markingsCE, UL
Housing data8 x M8, 4 x M12
Dimensions (W x H x D)30 mm x 126 mm x 26.5 mm
Materialzinc die-cast
Installation2 fixing holes 3.5 mm diameter for M3

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