Jetter JetControl 365MC, User Manual, Page: 92 / 148

Jetter AG Programming | 8
User Manual – JetControl 365MC 92 / 148
1
Controller
2
Ethernet switch
3
Up to 64 Ethernet bus nodes per controller
Up to 16 JX3 I/O modules per Ethernet bus node
Definition - Global
Node Number The Global Node Number (GNN) is an ID number used to identify Jetter devices
(e.g. controllers, bus nodes) within an Ethernet network:
■ Within a network, the GNN must be unambiguous for each Jetter device.
■ The JetSym Hardware Manager automatically assigns the GNN during config-
uration.
■ The value range of the GNN within a project is 000 ... 199.
■ The controller has always got GNN 000.
Register numbering system
The register numbers consist of a prefix, the GNN, the module position within the
system and the module-specific register number.
1 NNN XX ZZZZ
Fig. 22: Example:
Register numbers
Digits Description Value range
1 Prefix
NNN Bus node ID, GNN 001 … 199
XX Position of the module within the
station 02 … 17
ZZZZ Module register number 0000 … 9999
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 GNN, prefix 2, the module position in the sys-
tem and the module-specific I/O number.
1 NNN 01 XX ZZ
Fig. 23: Example:
I/O numbers
Digits Description Value range
1 Prefix 1
NNN Bus node ID, GNN 001 … 199
01 Prefix 2
XX Position of the module within the
station 02 … 17
ZZ Module-specific I/O number 01 … 16
INFO
Further information
Further information on this topic can be found in the Application-oriented Manual
Jetter Ethernet System Bus that can be downloaded from our homepage .