Clipsal C-Bus Bedienerhandbuch Seite 143

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1250SM0904R10/09 C-Bus™ Basic Programming
10/2009 C-Bus™ Products Training Course
© 2009 Schneider Electric. All Rights Reserved. 137
C-Bus Diagnostics
Basic Diagnostic Process
When any unexpected behavior occurs on C-Bus, a structured diagnostic
approach must be taken to resolve any issues. The flow chart below details
a basic diagnostic process, which should be followed when experiencing
any fundamental hardware or programming issues with a C-Bus network.
Start
Unit LED On?
Issue:
No Mains Present
No
Yes
C-Bus LED
On Solid?
Issue:
No or Very Low C-Bus
Voltage.
No C-Bus Clock.
The C-Bus network has
a short circuit.
No
Yes
Input Units
Working?
Issue:
Incorrect Wiring
No
Yes
C-Bus
Network
Opens?
No
Yes
Issue:
No Connection to
Interface.
Incorrect Interface type
of address.
C-Bus
Network
Scans?
No
Issue:
Network Burden Issues.
Yes
Loads
Correctly
Working?
No
Loads
Connected
Correctly?
C-Bus network seems to
be operating.
Yes
Yes
Group
Addresses
Correct?
Issue:
Load Wired To Wrong
Channels.
No
Yes
Issue:
Use Application Log &
Group Address
Dependancies to find the
correct programming.
No
Programming Diagnostic Process
Hardware Diagnostic Process
End
Figure 127 - The basic steps for low level C-Bus diagnostics
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