Network Topology; Configuring The Baud Rate And Dvn Address - Burkert 8681 Guide Rapide

DeviceNet design
WARNING!
Risk of injury due to electric shock!
` Before reaching into the system (except for the Teach-In pro-
cedure in a non-explosive atmosphere) switch off the power
supply and secure it to prevent restarting! Observe the appli-
cable accident prevention and safety regulations for electrical
equipment!
Risk of injury due to improper installation!
` Installation may only be carried out by authorised specialist
personnel and using the appropriate tools.
Internal cabling work is not required for variants with multipole con-
nection. However, you will require the correspondingly packaged or
assembled cable sets with the following pin assignment:
View of plug from the front onto the pins:
Pin 4: CAN_H
Pin 5: CAN_L
Pin 1: Drain
Fig. 7: Multipole connection DeviceNet
Pin Assignment
1 Drain
2 V+
3 V-
4 CAN_H
5 CAN_L
Type 8681
Pin 3: V–
Pin 2: V+
Colour
(shielding)
red
black
white
blue
An external initiator can be con-
nected via the 3-way terminal strip
- see Operating Instructions, chapter
"Connecting an external initiator".
10.6

Network topology

When installing a DeviceNet system, ensure that the terminating
circuit of the data lines is correct. The circuit prevents the occur-
rence of interference caused by signals reflected onto the data lines.
The trunk line must be terminated at both ends with resistors of
120 Ohm each and 1/4 W power loss (see Operating Instructions,
chapter "Network Topology DeviceNet").
10.7 Configuring the baud rate and DVN
address
Eight DIP switches are available for configuration:
• DIP switches 1 to 6 for the DeviceNet address
(Factory setting: 63, i.e. DIP 1 - 6: on)
• DIP switches 7 to 8 for the baud rate
(Factory setting: 125 kbit/s, i.e. DIP 7 + 8: off)
Further settings - see Operating Instructions, chapter "Configuring
the DeviceNet address / baud rate".
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