User Manual

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Building Technologies M-bus System CE1P5361en
HVAC Products 8 Addendum 08.02.2007
8.4 Plant documentation, planning the M-bus
(examples)
5361P01
OZW10
WZC-P250
WZC-R250
1.a
1.b
1.c
1.d
1.e
1.f
1.g
1.h
2.a
2.b
2.c
2.d
2.e
2.f
5361Z24
Loop resistance Cable capacitance
Remarks
Section Length Meter
number
Bus
address
Type of cable
Type of
cable
Cable
theoret.
Cable
pract.
Type of
cable
Cable
theoret.
1.a 120 m 5 1–5 J-Y(St)Y 4 × 2 × 0.8 36 /km 4.32  4.2  100 nF/km 36 nF 2 pairs combined
1.b 100 m 7 6–12 J-Y(St)Y 2 × 2 × 1.5 24 /km 2.4  2.4  120 nF/km 15 nF
1.c 250 m 3 20, 22, 24 J-Y(St)Y 2 × 2 × 0.8 71 /km 17.75  17.3  100 nF/km 37.5 nF
…
…
…
Plant location
Bus topology and
bus sections
List of bus sections