18
ControlNet NetChecker
Rockwell Automation Publication 1788-UM001B-EN-P - August 2012
Check the Signal Level by Using the Bargraph
Set slide switch SW3 to its bargraph (rightmost) position and set the Node Finder to zero to get
a global level indication. Press the ON switch and make sure that the TRAFFIC status indicator
is green. Generally, the bargraph displays two green status indicators indicating the maximum
and the minimum level of signal seen at the point of test on the network. Normally, these should
be in the range of status indicators 2…6.
TRAFFIC
Low Bat
1
Node On Line
Diagnostic
2
3
4
5
6
7
L M H
Threshold
INPUT
Rockwell
Automation
Push ON
Buzzer
Ext
5VDC
0.25A
Power
Max
Min
0
7
Signal
(x1/4 )
GND
Trigger
Output to Scope
Node Finder
Power Switch
OFF
ON
Push ON
Bargraph
Pass/Fail
Slow Edges
Illegal Framing
Poor Signal
Quality
Allen-
Control
Net
TM
Net
Checker
TRAFFIC
Low Bat
1
Node On Line
Diagnostic
2
3
4
5
6
7
L M H
Threshold
INPUT
Rockwell
Automation
Push ON
Buzzer
Ext
5VDC
0.25A
Power
Max
Min
1
1
Signal
(x1/4 )
GND
Trigger
Output to Scope
Node Finder
Power Switch
OFF
ON
Push ON
Bargraph
Pass/Fail
Slow Edges
Illegal Framing
Poor Signal
Quality
Allen-
Control
Net
TM
Net
Checker
Allen-Bradley
Allen-Bradley
Green
Green
Red
Blinking Red
Low Threshold Setting (highest sensitivity level)
High Threshold Setting (lowest sensitivity level)
