Lenze POWERLINK E84DGDV Series, Руководство по связи

Страница: 22 / 70

Installation
Electrical installation
22
Lenze · Decentralised frequency inverter 8400 motec (POWERLINK Option) · EDS84DMOTPL EN 1.0 - 11/2018
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
5.2.2 POWERLINK
In order to use the real-time capability of the POWERLINK technology, POWERLINK nodes must be
interconnected in a separate network segment.
In accordance with the EPL rules, only the managing node controls the network access of EPL nodes.
The managing node is the only node that transmits autonomously. The slave nodes (i.e. all
controlled nodes) only transmit when they are entitled to transmit by the managing node.
Non-EPL nodes (e.g. PCs) typically violate these rules by sending frames independently of the
managing node. These frames interfere with the cyclic frame exchange of the EPL nodes and impede
the real-time capability of POWERLINK.
Connection to the standard Ethernet network
The connection to an external standard Ethernet network is carried out via an POWERLINK router or
an POWERLINK gateway.
These infrastructure components separate the network traffic in the POWERLINK network segment
from the one in the standard Ethernet. The handling of the frames depend on their direction:
• Standard Ethernet ---> EPL network segment:
Only frames that are addressed to nodes in the EPL network segment are forwarded. The
forwarding takes place in the asynchronous area of the EPL cycle.
• EPL network segment ---> standard Ethernet:
Only asynchronous frames that are not addressed to nodes in the EPL network segment are
forwarded.

Tip!
Detailed information on the function and setting of the router or gateway can be found in
the documentation of the component manufacturer.
5.2.3 Basic Ethernet Mode
The Communication Unit can be operated in the "Basic Ethernet Mode" for a basic parameter
setting provided that the following applies:
1. Operation of the module with network address (node ID)
≤
239.
• IP address: 192.168.100.[ Node ID ], see Node address (node ID) setting
(

26)
2. No operation with real-time EPL must be carried out.
No integration of a managing node (EPL address
=
240) into the standard Ethernet network.

Note!
Standard Ethernet nodes are not permitted in the POWERLINK network segment.

Note!
Operation in the "Basic Ethernet Mode" does not permit any real-time communication.