Baldor NXE100-1608Dx, Installation Manual

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Input / Output 4-25 MN1941
4.6.2 ETHERNET Powerlink
NextMove 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 NextMove
e 100 and other EPL enabled controllers such as
MicroFlex e 100. The EPL protocol implemented in Mint is based on the CANopen DS402 Device
Profile for Drives and Motion Control.
NextMove 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 10 nodes,
avoiding the need for additional hubs. If the network comprises more than 10 nodes, an external
hub must be used. 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
MicroFlex e 100
Drive
MicroFlex e 100
Drive
MicroFlex e 100
Drive
MicroFlex e 100
Drive
Figure 28 - Simple daisy-chained EPL network
NextMove e 100
Manager Node
Machine 1
MicroFlex e 100 Drives 1-9
External hub Machine 1
MicroFlex e 100 Drives 10-16
NextMove e 100
Controlled Node
1 2 3 4 5 6 7 8 9
11 12 13 14 15 16
17 18 19 20
Machine 2
MicroFlex e 100 Drives 17-20
10
Figure 29 - Example multi-branch EPL network