B.3.13 Example CAN network

To show the steps required in putting a CAN network together, a multi node network is described below. The network will include:

H1 MintDrive controller H 2 InputNode 8 nodes H 2 OutputNode 8 nodes H 1 RelayNode 8 node H 1 ioNode 24/24 node H 1 KeypadNode node

MintDrive

N1O

32

Serial cable

Host computer

CAN2 Bus

The nodes are daisy-chained together with the MintDrive and KeypadNode node at the ends of the network. The controller is housed a short distance from the machine, with the CAN peripherals distributed around the machine near to their respective actuators and sensors. Each node is supplied with 24VDC from a bus supplying the machine. The CAN Baud rate will be the default 125 Kbaud.

InputNode

InputNode

OutputNode

 

 

 

 

OutputNode

RelayNode

#1

#2

 

 

#3

 

 

#4

 

#5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ioNode 24/24

KeypadNode

#6

#7

For the following steps, you might wish to refer to section B.3.6 on page 121:

HStatically configure the two InputNode 8 nodes with Node IDs 1 and 2. H Statically configure the two OutputNode 8 nodes with Node IDs 3 and 4. H Statically configure the RelayNode 8 node with Node ID 5.

H Statically configure the ioNode 24/24 node with Node ID 6. H Statically configure the KeypadNode node with Node ID 7.

HTerminate the network. On the MintDrive, the terminator should be selected by setting the CAN2 DIP switch into the ON position. On the KeypadNode, the terminator should be selected by fitting jumper JP3. The remaining nodes should have their terminators disconnected by removing jumper JP3.

HPower up the system.

HOnce Mint is running, scan the network for nodes by typing:

NODESCAN.0

HNow type:

VIEW NODELIVE.2

to display all the active nodes on the CAN2 network.

126

Page 138
Image 138
Baldor MN1274 06/2001 installation manual Example can network, 126, NODESCAN.0, View NODELIVE.2