Emerson Rosemount 3410 Series Maintenance And Troubleshooting Manual page 19

Maintenance and Troubleshooting Manual
00809-0600-3104
2.2.6 Communication line connected to the flow computer, but
no signal is received
Recommended actions
2.2.7 Communication issues due to blocked network ports
Blocked network ports on the computer running MeterLink
network (LAN) can prevent connections to the meter or prevent certain features from
working. These issues may occur over Ethernet, modem, and direct serial connections.
Reference the list of network ports used by MeterLink in the Help file and the symptoms of
having blocked ports. Contact your information technology (IT) department for assistance
in resolving these issues.
Error condition of a blocked network
• Cannot connect to a meter
• Cannot collect Archive log files
• Cannot view or stream waveforms in Waveform Viewer or Signal Analyzer
• Cannot upgrade firmware
• Communications lost over serial or modem connections while MeterLink is idle on a
screen
Symptoms of a blocked network
2.2.8 Communicating with meter, but all chords display failures
Recommended actions
Rosemount Gas Ultrasonic Flow Meters
1. Check for loose connections at the flow meter and the flow computer.
2. Check the central processing unit (CPU) module settings.
1. If a PING is blocked on this network port, serial or modem connections could be
lost after approximately 15 seconds of inactivity. This issue can be confirmed by
checking the log_meter_log file in the Temp data folder. The path of the Temp
data folder is shown in the MeterLink About dialog.
2. A blocked file transfer protocol (FTP) port will generally not prevent a connection
to the meter, but will prevent log collections and program downloads. A
blocked FTP port could prevent a connection in the event the meter is running
a newer version of firmware for which MeterLink does not currently have
a database configuration file. If this is the case, a message stating
reading database config file dbconfig <databaseversion>.xml
will be displayed.
from the meter.
3. A blocked DB application programming interface (API) port will report
10001 opening database connection to <IP address>.
4. A blocked Streaming port will report an error message
This will occur when opening the Signal Analyzer window
control socket.
or clicking Read or Stream to File in the Waveform Viewer.
1. Verify that the resistance of transducers is within specification (2 Ω).
2. Check the acquisition module.
Troubleshooting
January 2024
or on a company local area
™
Error
Error
Unable to open a
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