Beckhoff CX2100-0004 Manual page 26

Configuration
ESB Id Serial numbers of the devices on the BUS
Device Handle Pointer to the device driver
Data Exchange Cycle in which the communication takes place
ADS Port address for ADS access
(7100 for the TwinCAT function block)
Tab: ADS Commands
The range for ADS communication is displayed here.
26 Version: 1.2 CX2100-0004