EP3204-0002 | 4-channel analog input PT100 (RTD)

The EP3204 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. Linearisation over the full temperature range is realised 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. Parameterisation is carried out via EtherCAT.

Technical data	EP3204-0002
Number of inputs	4
Connection method	screw type M12 for 2-, 3- and 4-wire connections, presetting: 2-wire
Protocol	EtherCAT
Bus interface	2 x M8, shielded, screw type
Sensor types	PT100, PT200, PT500, PT1000, Ni100, Ni120, Ni1000 resistance measurement (e.g. potentiometer)
Signal type	PT100
Measuring range	-200…+850 °C (PT sensors); -60…+250 °C (Ni sensors)
Resolution	0.1 °C per digit
Conversion time	800 ms up to 2 ms, see documentation, default: approx. 85 ms
Nominal voltage	24 V DC (-15 %/+20 %)
Measuring error	< ±0.5 °C for PT sensors (further types see documentation)
Distributed clocks	–
Measuring current	typ. 0.5 mA
Input filter	5 variations, configurable
Sensor supply	–
Current consumption from US (without sensor current)	120 mA
Power supply connection	feed: 1 x M8 male socket, 4-pin; downstream connection: 1 x M8 female socket, 4-pin
Bit width in the process image	4 x 32 bit RTD input
Electrical isolation	500 V
Special features	open-circuit recognition
Weight	approx. 165 g
Operating/storage temperature	-25…+60 °C/-40…+85 °C
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 65/66/67 (conforms to EN 60529)/variable
Approvals	CE, UL, Ex