System 2020 XT C
ONNECT
Installation
3 - 39
ba75970e01
10/2012
3.10 Commissioning
3.10.1 Topology and terminator switch
For failure-free operation, the terminator switches (terminating resis
-
tors) must always be set to ON on two MIQ modules. On which mod
-
ules this has to be done can be taken from the topology of the
IQ S
ENSOR
N
ET
system:
Fig. 3-26 Correct setting of the terminator switches
Main line
Longest cable section with terminator switches at
its ends.
The terminator switches on both ends must be
set to ON.
If all MIQ modules are at one location, i. e. in a
module stack, the length of the main line is zero
(star-shaped wiring).
Branch line
All lines that branch from the main line.
Branch lines can be branched further.
x
x
s
s
s
s
s
s
s
Trunk line (”longest cable section”)
Star-shaped wiring
Branch line
Branch line 1
Branch line 2
Branch line 3
(with subbranches)
s
x
MIQ/... with terminator switch OFF
MIQ/... with terminator switch ON
Sensor
x x
Summary of Contents for IQ SENSOR NET System 2020 XT
Page 2: ...Copyright 2016 Xylem Analytics Germany GmbH Printed in Germany...
Page 8: ...Contents System 2020 XT CONNECT 0 6 ba75970e01 10 2012...
Page 24: ...Overview System 2020 XT CONNECT 1 16 ba75970e01 10 2012...
Page 28: ...Safety System 2020 XT CONNECT 2 4 ba75970e01 10 2012...
Page 123: ...System 2020 XT CONNECT Settings setup 5 11 ba75970e01 10 2012 Fig 5 10 Edit list of sensors...
Page 138: ...Settings setup System 2020 XT CONNECT 5 26 ba75970e01 10 2012...
Page 152: ...Network connection System 2020 XT CONNECT 6 14 ba75970e01 10 2012...
Page 178: ...PROFIBUS connection option System 2020 XT CONNECT 8 12 ba75970e01 10 2012...
Page 180: ...Maintenance and cleaning System 2020 XT CONNECT 9 2 ba75970e01 10 2012...
Page 194: ...What to do if System 2020 XT CONNECT 10 14 ba75970e01 10 2012...
Page 204: ...Accessories and options System 2020 XT CONNECT 12 2 ba75970e01 10 2012...
Page 212: ...Lists IQ SENSOR NET System 2020 XT CONNECT 13 8 ba75970e01 10 2012...
Page 215: ......