ABB NGC8206 - Page 213

Page 6–30
2101510 Rev. AG
Figure 6-4 Communication Troubleshooting Flowchart
12V
Communication
Supply Voltage
Test
START
Does Unit
Respond to Host
Comm Request?
RS-232
Communication
Test
YES
NO
Verify unit
ID#, Security
Code and
Protocol are
Correct.
NO
YES
Verify jumper
and terminal &
pin wiring are
correct.
END
Transceiver
Supply voltage
within Specs?
YES
Voltage supply
from NGC unit
= 10.5 VDC?
NO
Investigate
Power Supply
Issues
Figure 5-1
Transceiver
Comm Check
Substitute
Communication
Test Cable
Transceiver
Supply voltage
Test
Investigate
Transceiver
Issues
Unit Respond to
Host Comm
Request?
YES
NO
RS-485
Communication
Test
Is
Communication
RS-232?
YES
NO
Is
Communication
RS-485?
YES
NO
Contact
Totalflow
Technical
Support
Does Unit
Respond?
NO
YES
Test Passed?
NO
YES