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CANopen [X4]
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Festo – GDCP-CMMP-M3/-M0-C-CO-EN – 1510b – English
2.3.1
Setting of the node number
Each device in the network must be assigned a unique node number.
The node number can be set via the DIP switches 1 … 5 on the module in slot Ext3 and in the program
FCT.
The resulting node number consists of the base address (FCT) and the offset
(DIP switches).
Permissible values for the node number lie in the range 1 … 127.
Setting of the offset of the node number with DIP switches
Setting of the node number can be made with DIP switch 1 … 5. The offset of the node number set via
DIP switches 1 … 5 is displayed in the program FCT on the Fieldbus page in the Operating Parameters
tab.
DIP switches
Value
Example
ON
OFF
Value
1
1
0
ON
1
2
2
0
ON
2
3
4
0
OFF
0
4
8
0
ON
8
5
16
0
ON
16
Total 1 … 5 = Offset
1 … 31
1)
27
1)
The value 0 for the offset is interpreted in connection with a base address 0 as node number 1.
A node number greater than 31 must be set with the FCT.
Tab. 2.3
Setting of the offset of the node number
Setting the base address of the node number with FCT
With the Festo Configuration Tool (FCT), the node number is set as base address on the Fieldbus page
in the Operating Parameters tab.
Default setting = 0 (that means offset = node number).
If a node number is assigned simultaneously via DIP switches 1…5 and in the FCT pro
gram, the resulting node number consists of the sum of the base address and the offset.
If this sum is greater than 127, the value is automatically limited to 127.
