Schneider Electric INTERBUS Basic Spécifications Page 12

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Introduction
12
31004624 8/2009
Structural Overview
The following figure illustrates the multiple roles of the NIM. The figure provides a
network view and a physical representation of the island bus:
1 fieldbus master
2 external 24 VDC power supply, the source for logic power on the island
3 external device connected to the CFG port (a computer running the Advantys
Configuration Software or an HMI panel)
4 power distribution module (PDM): provides field power to the I/O modules
5 island node
6 island bus terminator plate
7 other nodes on the fieldbus network
8 fieldbus network terminator (if required)
PDM IO IO IO IO IO
PDM
P
M
I
O
IO
IO
IO
IO
1
2
6
7
8
5
4
3
7 7
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