Emerson Rosemount 2410 Reference Manual page 107

Reference Manual
00809-0100-2410, Rev DA
Symptom
No communication with
one or more devices on
the Tankbus
Service and Troubleshooting
Possible cause
Wiring
Incorrect Tankbus termination
Too many devices on the Tankbus
Service and Troubleshooting
Action
Check that the devices appear in the Device Live List

(see "Device Live List" on page
Check diagnostics information, see

on page 84 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

on page 84) 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

on page 84) 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 5400).
Use shielded twisted pair wiring.

Connect wiring with drip loops.

Check the loop impedance.

Check that there are two terminators on the

Tankbus (see section "Tankbus" on page
Check that terminations are placed at both ends of

the Tankbus.
Check that the built-in termination in the

Rosemount 2410 Tank Hub is enabled.
Check that the total current consumption of the

devices on the Tankbus is less than 250 mA, see
"Power budget" on page
Remove one or more devices from the Tankbus.

The Rosemount 2410 Tank Hub supports a single
tank. The multiple tank version of the Rosemount
2410 supports up to 10 tanks.
March 2017
80).
"Diagnostics"
"Diagnostics"
"Diagnostics"
29).
28.
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