Table 6-3: Troubleshooting chart (continued)
Symptom Possible cause Action
No communication with
one or more devices on
the Tankbus
Wiring • Check that the devices appear in the Device Live
List (see View the device live list in
TankMaster
™
).
• Check diagnostics information, see View and
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 View and
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 View and
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.
Reference Manual Service and troubleshooting
00809-0100-2410 December 2019
Rosemount 2410 Tank Hub 101