Analog input
EPP3204-0002
 
EPP3204-0002 | 4-channel analog input PT100 (RTD)
EPP3204-0002
Connector
assignment
I/O
connection
M12 I/O
connection sockets 
Signal status display
Labelling areas 
1 | RL+
2 | R+
3 | RL-
4 | R-
5 | Shield
1 | TX+/GNDS
2 | Rx+/GNDP
3 | Rx-/UP
4 | Tx-/US
EtherCAT P
signal input 
EtherCAT P
signal output 
4-wire 3-wire 2-wire
Power supply
status display:
Box supply (US
Auxiliary voltage (UP
extended temperature range

EPP3204-0002 | 4-channel analog input PT100 (RTD)

The EPP3204 EtherCAT P 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 EPP3204-0002
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 socket, shielded, screw type, EtherCAT-P-coded
Sensor types PT100, PT200, PT500, PT1000, Ni100, Ni120, Ni1000 resistance measurement (e.g. potentiometer, 10 Ω…1.2/4 kΩ)
Signal type PT100
Measuring range -200…+850 °C (PT sensors); -60…+250 °C (Ni sensors)
Resolution 0.1 °C per digit
Measuring error < ±0.5 °C for PT sensors (further types see documentation)
Conversion time 800 ms up to 2 ms, see documentation, default: approx. 85 ms
Nominal voltage 24 V DC (-15 %/+20 %)
Distributed clocks
Measuring current typ. 0.5 mA
Input filter 5 variations, configurable
Sensor supply
Current consumption from US typ. 120 mA
Power supply connection not necessary
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
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
Accessories  
ZK700x-010x-0xxx Cables for EtherCAT P: Ultra-fast Communication and Power in One Cable
ZK2000-71xx-0xxx Shielded cables for M12 I/O connection sockets