Installation manual

D
D
e
e
v
v
i
i
c
c
e
e
N
N
e
e
t
t
T
T
r
r
o
o
u
u
b
b
l
l
e
e
s
s
h
h
o
o
o
o
t
t
i
i
n
n
g
g
G
G
u
u
i
i
d
d
e
e
l
l
i
i
n
n
e
e
s
s
If scanner goes bus off again, The problem is some combination of
Defective node •
•
•
•
•
•
•
•
•
•
•
Node baud rate
Bad topology
Bad connections
Bad scanner
Bad power
Bad grounding
Bad electrical noise
A Solid RED light at power-up means two nodes have the same address.
A Solid RED after allocation means bus off Check baud rate.
If the problems persist:
Replace T-Tap
Check topology
Check power for noise with oscilloscope or power disturbance analyzer
Finally if the problem remains after all else has been tried replace the node.
( Be sure to set the node address and baud rate on the replacement node, if applicable )
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