Introduction

Introduction 1:
EJ2262

2-channel digital output EtherCAT plug-in module 24 VDC, with oversampling

The EJ2262 digital output module connects the binary control output signals at the process level with electrical isolation.

The outputs are controlled with an adjustable integral multiple (oversampling factor: n) of the bus cycle time (n microcycles per bus cycle). For each micro-cycle, the EtherCAT plug-in module receives a process data block that is output consecutively. The time base of the module can be synchronized precisely with other EtherCAT devices via distributed clocks. An output pattern with a significantly higher pulse sequence than the bus cycle time is thus output precisely with the system-wide timebase. This procedure enables the temporal resolution of the digital output signals to be increased to n times the bus cycle time. The maximum output rate is 1 Msample/s.

The EJ2262 supports distributed clocks, i.e. the output data can be synchronously output with other data that are similarly connected, distributed, to distributed clock devices. The accuracy across the system is < 100 ns.

The EJ2262 can operate up to two channels with identical oversampling factor. To reduce process data traffic channel 1 can be operated solely.