Baumuller b maxx BM4400 User Manual

Basic principles POWERLINK
Application Manual POWERLINK Controlled Node
Document no. 5.13013.04 Baumüller Nürnberg GmbH
10
of 80
3.2
3.2 Basic principles POWERLINK
POWERLINK Version 2 (Ethernet type 0x88ab) is a published fieldbus system on the ba-
sis of real-time Ethernet, that integrates the mechanisms of CANopen completely.
Twisted pair cables (100Base-TX)
serve as physical basis.
Net work POWERLINK
enables users to choose any topology. The network can be realized as line
structure, tree structure, star structure or ring structure, whereas combinations are al-
lowed, too. There is the possibility
of adding and removing devices during run time (Hot-
Plugging).
Bus access The bus can be accessed via the CSMA/CD procedure (Carrier Sense Multiple Access /
Collis
ion Detection). Collisions may occur, as each participant is allowed to start sending
his message, after recognizing the necessary idle bus. In this case, the collisions will be
detected (Collision Detection) and the sending will be repeated after a random time inter-
val. This ensures a transmission without data lo
ss. For that reason, it is, of course, nec-
essary that each participant can clearly be iden
tified in the network by the respective MAC
address.
The application of switches may lead to un
defined conditions in the network.
MAC addressing Each participant can send messages unrequested. Therefore, a clear sender and desti-
nation address is needed which is achieved by the MAC address.
IP addressing Class Cv4 address 192.168.100.0 shal
l be used as net ID of a POWERLINK network.
Each network supports 254 IP addresses whereby the last byte of the IP address
(host ID) should correspond to the node number (node ID) of the participant.
192.168.100.POWERLINK Node ID
Net ID Host ID
The following node IDs are reserved:
Address Description
0x00 Invalid address
0xF0 POWERLINK de
fault address of Managed Node
0xFB Pseudo node address to be used by a node to adress itself
0xFC POWERLINK du
mmy node address
0xFD POWERLINK de
fault address of diagnostic device
0xFE Default address of POWERLINK ga
teways/router
0xFF POWERLINK br
oadcast address
As this is a class C network, the
subnet mask of the POWERLINK node shall be
255.255.255.0.

Baumuller b maxx BM4400 Specifications

General

Brand	Baumuller
Model	b maxx BM4400
Category	DC Drives
Language	English