AUMA Aumatic ACExC 01.1 User Manual

4.1 DeviceNet cable The DeviceNet cable provides both the CAN data signal and the power
supply for network and devices. The different system and device require-
ments are cover by three cable types: Thick Cable, Thin Cable and Flat
Cable. The AUMATIC with DeviceNet can both be connected with the Thick
Cable and the Thin Cable. All cables consist of four wires for the CAN data
signal and the power supply as well as a drain wire for the shield (except for
the flat cable which is not shielded). The cables were designed for the use in
industrial environments and are therefore very robust.
A DeviceNet cable consists of a total of 5 wires. The meaning and the colour
coding of these wires are determined as follows.
4.2 DeviceNet topology A DeviceNet network may consist of a trunk line, which runs through the
entire system like an aorta, and of drop lines, which connect the devices to
the trunk line (figure A).
Up to 64 DeviceNet devices (nodes) can be operated within a single
DeviceNet network. The baud rates 125 kbit/s, 250 kbit/s and 500 kbit/s are
available. The nodes can either be supplied via DeviceNet (max. of 8 A) or
have their own powerful power supply.
The AUMATIC with DeviceNet has its own power supply. For the supply of
the galvanically isolated network part of the AUMATIC DeviceNet interface,
only a standard supply current of approx. 30 mA (for 24 V DC) per AUMATIC
is required.
The distinct concept of galvanic separation is also important within this
context. Only one earthing point is permitted within the system. Earth
looping via non-galvanically isolated devices is not permitted, the user either
has to isolate their device accordingly (device designation: non-isolated
6
Actuator controls AUMATIC AC 01.1 / ACExC 01.1
DeviceNet Operation instructions
Colour Function Application
Red V+ (24 V DC) DeviceNet voltage supply
White CAN_H Data cable
Bare Drain Screened cable
Blue CAN_L Data cable
Black V– (0 V DC) DeviceNet voltage supply
Table 1
Baud rate Maximum
trunk line length
Maximum
accumulated
drop line length
Maximum
single
drop line length
Thick Cable Thin Cable
125 kbit/s 500 m 100 m 156 m 6 m
250 kbit/s 250 m 100 m 78 m 6 m
500 kbit/s 100 m 100 m 39 m 6 m
Table 2
Master
Trunk line
Drop line
T-tap
DeviceNet
device (node)
Figure A
PS
24 V DC DeviceNet voltage supply

AUMA Aumatic ACExC 01.1 Specifications

General

Brand	AUMA
Model	Aumatic ACExC 01.1
Category	Controller
Language	English