Omron E3X-ECT Operation Manual page 8

Icon
The meanings of the icons used in this manual are as follows.
Precautions for Safe Use
Indicates precautions on what to do and what not to do to ensure using the product safely.
Precautions for Correct Use
Indicates precautions on what to do and what not to do to ensure proper operation and
performance.
Reference
This explains useful tips and reference information when using the product.
E3X-ECT EtherCAT Sensor Communication Unit Instraction Manual 3