Jetter AG
Programming | 7
JX3-BN-EC User Manual
27 / 92
7.1.1.2
Expansion modules connected to an EtherCAT® bus node
EtherCAT
®
bus node and controller communicate via EtherCAT
®
system bus. At
addressing the expansion modules via EtherCAT
®
bus node, the EtherCAT
®
Node Number (ENN) becomes part of the register number. The ENN is an ID
number used to identify controllers and EtherCAT
®
bus nodes within an
EtherCAT
®
network. The ENN is automatically assigned by JetSym.
System overview
EtherCAT
®
...
1
2
3
Fig. 12:
System overview
1
EtherCAT
®
master
2
EtherCAT
®
bus node with up to
16 JX3 I/O modules
3
Up to 99 EtherCAT
®
bus nodes