Ethernet Connections; Direct Serial Connections - Emerson Daniel 3812 Maintenance And Troubleshooting Manual

Maintenance and Troubleshooting Manual
3-9000-767 Rev A
2.2.4

Ethernet connections

If you received the error message "Unable to connect to meter" while trying to connect over
Ethernet, verify you have the correct IP address in the Meter Directory record. If the meter is to
assign the IP address, make sure the IP address is set to 192.168.135.100 and that the DHCP
switch is ON position on the CPU Module. If the meter has a fixed IP address, verify the IP
address, Subnet, and Gateway are correct in the meter. Verify your wiring to make sure you have
a cross-over cable for a direct connection between the meter and the computer. If going
through a hub, verify that the computer and meter are connected to the hub with straight-
through patch cables.
2.2.5

Direct serial connections

Verify the switch settings on the CPU Module. Also verify your wiring between the meter and the
computer running Daniel MeterLink using the Field Wiring drawing DMC-004946. Verify the
Comms Address and Baud rate are correct in the Meter Directory record. If unsure of the port
settings for Port A on the CPU module, you can change the PORT A switch on the CPU module
from OFF to ON and the port will be forced to RS-232, 19200 baud rate, Modbus ID =32 for two
minutes.
For additional information on wiring and configuring the meter for the various communication
options, refer to the Installation Manual (P/N 3-9000-765).
Ethernet connections
Section 2: Troubleshooting
June 2011
25