Table 2-2: Troubleshooting
(continued)
Error
Recommended action(s)
—
If transducer cabling allows, swap cabling of failed transducer
pair with a pair with equal path lengths. If the alarm remains
active for this chord, then the transducers are working properly.
If this alarm clears but the chord that was swapped now fails,
the issue is with the transducer.
—
Collect a Maintenance Log, Configuration file and Waveform
stream file with MeterLink and contact your Emerson Flow
service representative.
CPU Module LINK LED
•
When connecting directly:
—
Check the cross-over cable connection (P/N 1-360-01-596)
•
When using a Hub:
—
Use straight-through patch cable between the meter and the
hub and a straight-through patch cable between the hub and
the PC.
—
Do not connect either the Rosemount 3410 Ultrasonic Flow
Meter or PC to the hub UPLINK port.
—
Check the CPU Module LED 1 is on (either solid red or flashing
green). If the LED is not on, check power to the meter.
—
If the LED is on, check the Ethernet cable connections.
CPU Module LINK LED is
on but I can't
communicate with the
meter using Ethernet
•
If you are connecting for the first time, refer to the 3410 Series
Installation Manual, in "Wiring and inputs/outputs" for instructions
on initial communication (via Ethernet) setup.
•
Enable the DHCP switch on the CPU Module.
•
Verify that the PC has received an IP address from the meter as
follows:
—
Bring up DOS prompt window (
Start
→
Run
→
(type)cmd
)
—
In the DOS prompt window, type ipconfig
•
If you get the following: IP 192.168.135.35 (note: the last .35 can
be up to .44) with a Subnet Mask of 255.255.255.0 and Default
Gateway you should be able to connect to the meter.
•
If you get the following:
—
Ethernet adapter Local Area Connection 1
—
IP Address: 0.0.0.0 the PC has not yet received an IP address
from the DHCP server wait (up to 30 seconds).
—
If after 30 seconds the PC has not received an IP address from
the DHCP server or the IP address shown above (from ipconfig)
is different from the range of 192.168.135.35 through
192.168.135.44, verify that the PC is configured to receive its IP
address automatically (via DHCP).
Communication line
connected to the flow
computer but no signal is
received
•
Check for loose connections at the flow meter and the flow
computer.
•
Check the CPU Module settings.
Troubleshooting
Maintenance and Troubleshooting Manual
April 2022
00809-0600-3104
18
Emerson.com/Rosemount
