Devicenet Design; Connection Option; Devicenet Specification; Bus Line Length - Burkert 8681 Guide Rapide

DeviceNet design

10 DEVICENET DESIGN
10.1

Connection option

10.2

DeviceNet specification

EDS file: 8681.EDS
Icons: 8681.ICO
Baud rate: Factory setting 125 kbit/s
Address: Factory setting: 63
Process data: 2 static input assemblies (input: from control
head to DeviceNet master/scanner)
1 static output assembly
Inputs: 3 discrete feedback signals from the position
measuring system (positions S1 - S3)
1 discrete feedback signal from the external
initiator (S4)
1 analog position signal in mm
Type 8681
Connection left:
1 x M16 x 1.5 cable gland with
multipole connection (M12
plug according to IEC 61076-
2-101, 5-pole) to an 80 cm
long cable
Connection right:
1 x M16 x 1.5 cable gland for
external initiator
Supply via DeviceNet string
(11 ... 25 V DC)
High signal switch level ≥ 5 V
Low signal switch level ≥ 1.5 V
Outputs: 3 solenoid valves
Power consumption
from the bus: M ax. 5 W, (3 valves with 0.6 W each)
10.3

Bus line length

The maximum total line length (sum of trunk lines and drop lines)
of a network depends on the baud rate.
The maximum total line length (according to the DeviceNet
specification) is as follows for:
Baud rate Thick cable
125 kbit/s 500 m
250 kbit/s 250 m
500 kbit/s 100 m
The maximum drop line length is as follows for:
Baud rate Drop line
125 kbit/s 6 m
250 kbit/s 6 m
500 kbit/s 6 m
english
Mid cable
Thin cable
300 m
100 m
250 m
100 m
100 m
100 m
Sum (in the network)
156 m
78 m
39 m
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