Introduction
EtherCAT Box with four analog inputs for Pt100 (RTD)
The EP3204 EtherCAT Box with analog inputs enables direct connection of resistance sensors. The module circuit can operate sensors with 2-, 3- and 4-wire technology. Linearisation 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 4-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, and several data output formats may be chosen. The inputs can, if required, be scaled differently, and automatic limit monitoring is also available. EtherCAT is used for parameterization purposes.