AL Application Layer
DC Distributed Clock
DCM Distributed Clock Management
EASII Elmo Application Studio 2
ENI EtherCAT Network Information: This XML file describes the whole EtherCAT network. It describes all information, which are transmitted by the the PDOs as well.
ESC EtherCAT Slave Contorller
ESI EtherCAT Slave Information: This XML file describes a certain slave type. The manufacturer of the slave should provide this file. It is needed to create the ENI file.
ESM EtherCAT State Machine
FMMU Fieldbus Memory Management System
OD object dictionary
PDO Periodic Data Object: This frame is transmitted periodically (i.e. every millisecond)
PDI Process Data Interface
SDO Service Data Object