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5.7 Fieldbus
A simultaneous communication via USB and fieldbus is not allowed!
5.7.1 Addressing
Each slave in the network must have a unique address and must run at the same baud
rate!
For setting the fieldbus configurations through the control panel, see section 8.3
page 51.
5.7.2 RS485 based Installations
The recommended way to add more devices into a network is connecting each device in series to the
next in a linear topology (daisy chain).
Use only one power supply for all boxes in the network to avoid ground loops!
It is strongly recommended to use shielded and pair twisted cables (e.g. CAT.5)!
Make sure the network line is terminated!
Master
MI3
Slave 1
Figure 23: Network in Linear Topology (daisy chain)
Rev. G Nov/2015
Slave 2
Installation
<Box Setup>
Termination <on>
Last
Slave
Page,
39
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I am currently installing 4 modules, each with 2 of the Raytek MI3 units. 7 of the units arrived with the normal display (Bottom Unit in photo), but 1 has only a full white block in the display. Is this indicative of a failed unit, or would this require external adjustments. These units always work when received, so I am unfamiliar with the required troubleshooting.