Technical data
Troubleshooting communications and connectivity errors (continued)Table C-1:
Communications and connectivity errors and recommended actions
A2. If you are connecting for the first time, review the instructions for initial communication (via
Ethernet) setup.
Ensure that the Daniel Liquid Ultrasonic Flow Meter’s DHCP server is enabled (CPU Board
switch S2-2 CLOSED). Verify that the PC has received an IP address from the meter as follows:
• bring up the Command prompt window (Start->Run->(type)cmd)
• in the Command prompt window, type ipconfig.
You should then see something like:
• Windows 2000 IP Configuration
• Ethernet adapter Local Area Connection 1:
• Connection-specific DNS Suffix :
• IP Address : 192.168.135.35 (note: the last .35 can be up to .44)
• Subnet Mask : 255.255.255.0
• Default Gateway:
If you get the following:
• Ethernet adapter Local Area Connection 1:
• IP Address: 0.0.0.0
Then, the PC has not yet received an IP address from the DHCP server and you should wait
(up to 30 seconds) to receive an IP address before attempting to connect to the Daniel Liquid
Ultrasonic Flow Meter. If after 30 seconds the PC has not received an IP address from the
Daniel Liquid Ultrasonic Flow Meter DHCP server or the IP address shown above (from ipcon-
fig) 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).
To ensure connection to the Daniel Liquid Ultrasonic Flow Meter from the PC, at the DOS
prompt type:
• ping 192.168.135.100 <enter>
If the Daniel Liquid Ultrasonic Flow Meter is reachable, then you will see a message like:
• Pinging 192.168.135.100 with 32 bytes of data:
• Reply from 192.168.135.100: bytes=32 time < 10ms TTL=64
• etc.
If the Daniel Liquid Ultrasonic Flow Meter is not reachable, then you will see something like:
• Pinging 192.168.135.100 with 32 bytes of data:
• Request Timed Out etc.
Q3. How do I connect to multiple Daniel Liquid Ultrasonic Flow Meters via Ethernet when they are
on the same LAN?
A3. Before connecting multiple meters via Ethernet on a LAN, each meter must be configured
with a unique user-specified IP address (following the initial communication quick start in-
structions). Contact your IT department for valid IP addresses for your LAN and Gateway ad-
dress if required. Once a meter's IP address is configured, the meter may be connected to the
intranet LAN and accessed using that IP address. 3810 Series meters connected to an intra-
net LAN should not have their DHCP servers enabled.
Q4. How do I connect to multiple meters via Ethernet when they are on the same hub but not
connected to an intranet LAN?
Troubleshooting communications mechanical and electrical issues
118 Daniel 3810 Series Operations Manual