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Reference Manual
300530EN, Rev BA
September 2012
6-19
Rosemount 2410
Section 6. Service and Troubleshooting
No communication with one or
more devices on the Tankbus
Wiring
• Check that the devices appear in the Device Live List
(see “Device Live List” on page 6-4).
• Check diagnostics information, see “Diagnostics” on
page 6-7 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 “Diagnostics” on
page 6-7) 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 “Diagnostics” on
page 6-7) 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 (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 5400).
• Use shielded twisted pair wiring.
• Connect wiring with drip loops.
• Check the loop impedance.
Incorrect Tankbus termination
• Check that there are two terminators on the Tankbus
(see section “Tankbus” on page 3-8).
• Check that terminations are placed at both ends of the
Tankbus.
• Check that the built-in termination in the 2410 Tank Hub
is enabled.
Too many devices on the Tankbus
• Check that the total current consumption of the devices
on the Tankbus is less than 250 mA, see “Power
Budget” on page 3-7.
• Remove one or more devices from the Tankbus. The
2410 Tank Hub supports a single tank. The multiple
tank version of the 2410 supports up to 10 tanks.
Cables are too long
• Check that the input voltage on the device terminals is
9 V or more (see section “Tankbus” on page 3-8).
Software or hardware failure
• Check diagnostics information, see “Diagnostics” on
page 6-7.
• Check Device Status input register, see “Device Status”
on page 6-23.
• Contact Emerson Process Management/Rosemount
TankGauging service department.
Symptom Possible cause Action