wtw MIQ/Blue PS SET, Руководство по эксплуатации

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MIQ/Blue PS Installation
3 - 3 ba75573e04 05/2009
Fig. 3-1 Correct setting of the terminator switches
Special features with
certain configurations
z
If, except in the MIQ/Blue PS, no other terminator switch is available
on the IQ S
ENSOR
N
ET
island, it must be set to ON. In addition, a
terminating resistor (included in the scope of delivery) must be
connected to one of the three SENSORNET connectors. For more
details, see page 3-5.
z
If a DIQ/S 182 Universal Transmitter is on the IQ S
ENSOR
N
ET
island, all terminator switches on the IQ S
ENSOR
N
ET
island must be
set to ON.
Main line
(trunk line) Longest cable section with terminator switches at
its ends.
The terminator switches must be set to On at both
ends.
If all MIQ modules are located at one point, i. e. in
a module stack, the length of the main line is zero
(star-shaped wiring).
Branch line All lines branching 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