Emerson Rosemount 2410 Reference Manual page 101

Reference Manual
00809-0100-2410
Table 6-3: Troubleshooting chart
Symptom
No communication with
one or more devices on
the Tankbus
Rosemount 2410 Tank Hub
(continued)
Possible cause
Wiring
Service and troubleshooting
Action
• Check that the devices appear in the Device Live
List (see View the device live list in
™
TankMaster ).
• Check diagnostics information, see
configure diagnostic registers using
™
TankMaster for warning or error messages.
• Check that wires are properly connected to the
terminals.
• Check for dirty or defective terminals.
• Check wire insulation for possible short circuits
to ground.
• Check diagnostics information (see
configure diagnostic registers using
™
TankMaster ) for information that indicate bad
communication on the Tankbus: - Input
registers 1300 to 1328 provide general
information on Tankbus communication - Input
registers 1330 to 1648 provide information on
specific devices on the Tankbus.
• Check diagnostics information (see
configure diagnostic registers using
™
TankMaster ) for possible hardware faults that
indicate short circuits or ground faults: - check
Input Register 1326 for short circuits - check
Input Register 1328 for ground faults.
• Check that there are no multiple shield
grounding points
• Check that the cable shield is grounded at the
power supply end (Rosemount 2410 Tank Hub)
only.
• Check that the cable shield is continuous
throughout the Tankbus network.
• Check that the shield inside the instrument
housing does not come into contact with the
housing.
• Check that there is no water in conduits.
• Check for proper polarity at the terminals
(Rosemount 5300 and 5408).
• Use shielded twisted pair wiring.
• Connect wiring with drip loops.
• Check the loop impedance.
December 2019
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