www.baldormotion.com
5-20 Input / Output
MN1943
5.6.2 Ethernet POWERLINK
MotiFlex
e
100 supports the deterministic Ethernet POWERLINK (EPL) protocol. This protocol
provides very precise and predictable ‘real-time’ communication over a 100 Mbit/s (100Base-T)
Fast Ethernet (IEEE 802.3u) connection. This makes it suitable for the transmission of control
and feedback signals between the MotiFlex
e
100 and other EPL enabled controllers such as
NextMove
e
100. The EPL protocol implemented in Mint is based on the CANopen DS402 Device
Profile for Drives and Motion Control.
MotiFlex
e
100 incorporates a built-in repeating hub, providing two ports for connection to other
equipment. This allows nodes to be connected as a ‘daisy-chain’ network of up to 5 nodes,
avoiding the need for additional hubs. If the network comprises more than 5 nodes an external
hub must be used, with up to 5 nodes per port. The structure of the physical network is informal
so does not need to reflect the logical relationship between nodes. Ethernet switches must not be
used in EPL networks as their timing cannot be guaranteed.
NextMove
e
100
Manager Node
‘Daisy chained’ network
MotiFlex
e
100
Drive
MotiFlex
e
100
Drive
MotiFlex
e
100
Drive
MotiFlex
e
100
Drive
Figure 61 - Simple daisy-chained EPL network
NextMove
e
100
Manager Node
Machine 1
MotiFlex
e
100 Drives 1-5
External hub
Machine 1
MotiFlex
e
100 Drives 6-10
NextMove
e
100
Controlled Node
1
2
3
4
5
7
8
9
10
11
12
13
14
Machine 2
MotiFlex
e
100 Drives 11-14
6
Figure 62 - Example multi-branch EPL network
Содержание MotiFlex e100
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