Introduction

8-channel input, thermocouple with open-circuit recognition

The EJ3318 EtherCAT module enables the direct connection of eight thermocouples. The circuit of the EtherCAT module can operate thermocouple sensors in 2-wire technology. A microprocessor handles linearization across the whole temperature range, which is freely selectable. Cold junction compensation is achieved by external temperature measurement via RTDs. Measurements in the mV range are also possible with the EJ3318 EtherCAT plug-in module.

The error LEDs indicate a broken wire.