Expansion Modules Connected To An Ethercat® Bus Node; Fig. 11 Example: Register Numbers; Fig. 12 Example: I/O Numbers; Fig. 13 Example: Register Numbers - Jetter JX3-BN-EC User Manual

Jetter AG
Fig. 11: Example: Regis-
ter numbers
Fig. 12: Example:
I/O numbers
7.1.2 Expansion modules connected to an EtherCAT® bus node
Fig. 13: Example:
Register numbers
Fig. 14: Example:
I/O numbers
JX3-BN-EC User Manual
Digits Description
100 Prefix
XX Position of the module in the system
ZZZZ Module register number
I/O numbering system
The inputs or outputs of the module are directly accessed via I/O numbers. These
I/O numbers consist of a five-digit prefix, the module position in the system and
the I/O number of the module. The I/O numbers always start with the constant
prefix 10000.
Digits Description
10000 Prefix
XX Position of the module in the system
ZZ Module-specific I/O number
®
EtherCAT bus node and controller communicate via EtherCAT
addressing the expansion modules via EtherCAT
Node Number (ENN) becomes part of the register number. The ENN is an ID
number used to identify controllers and EtherCAT
®
CAT network. The ENN is automatically assigned by JetSym.
Register numbering system
The register numbers consist of a prefix, the ENN, the module position within the
system and the module-specific register number.
Digits Description
12 Prefix
NN Bus node ID, ENN
XX Position of the module within the
station
ZZZZ Module register number
I/O numbering system
The inputs or outputs of the module are directly accessed via I/O numbers. The I/
O numbers consist of prefix 1, the ENN, prefix 2, the module position in the sys-
tem and the module-specific I/O number.
Digits Description
12 Prefix 1
NN Bus node ID, ENN
00 Prefix 2
XX Position of the module within the
station
ZZ Module-specific I/O number
Programming | 7
value range
02 ... 17
0000 ... 9999
value range
02 ... 17
01 ... 16
®
system bus. At
®
bus node, the EtherCAT
®
bus nodes within an Ether-
value range
01 ... 99
02 ... 33
0000 ... 9999
value range
01 ... 99
02 ... 33
01 ... 16
®
18 / 86