Emerson Rosemount 2460 System Hub - 6.3 Troubleshooting

105
Reference Manual
00809-0100-2460, Rev DE
Service and Troubleshooting
October 2018
Service and Troubleshooting
6.2 Tools
The following standard tools are needed for service and maintenance of the Rosemount
™
2460:
 Screwdriver (Flat or Phillips)
 Wrench (Metric fixed or adjustable)
 Torx size 20 and 30 (for opening the lid and exchanging spare parts)
6.3 Troubleshooting
Table 6-1 on page 105 provides summarized maintenance and troubleshooting suggestions for the most
common operating problems.
Table 6-1. Troubleshooting chart
Symptom Possible cause Action
No contact with the
Rosemount 2460 System
Hub
Wiring
 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 that the Rosemount 2460 System Hub is
connected to the right communication port on the
control room PC.
RS485 wiring
 Check for proper polarity at the terminals.
Field Bus Modem (FBM 2180)
 Check that the Tx and Rx LEDs on the FBM are
blinking to verify proper communication with the
FBM.
 Check that the FBM is connected to the right port
on the control room PC.
 Check that the FBM is connected to the right port
on the Rosemount 2460 System Hub.
Connection to Rosemount
2460 System Hub
 Check communication port LED:s inside the
Rosemount 2460. Next to each modem card is a
green and a yellow LED for Tx and Rx signals. The
LEDs will blink if communication is working
properly.
Configuration of Rosemount
2460 System Hub
 Check the communication address for the
Rosemount 2460. Connect a service PC to the
Ethernet 3 port and open the Web
Interface>Communication tab.
 Check configuration of communication parameters
for the Rosemount 2460 host ports. Connect a
service PC to the Ethernet 3 port and open the Web
Interface>Communication tab.
 Check that the correct communication channel is
selected.