Technical data

• Meter volume units; gal, cubic feet, or bbl
• Prompt to save Meter Config (configuration) prompts you to save a copy of the
meter configuration after writing changes to the meter
• Run Connect dialog automatically after connecting
• Run Meter Monitor automatically after connecting
• Run Meter Monitor summary or detailed view after connecting
• Edit telephone number before connecting with a modem
• Use FTP passive mode (client - server pot communications)
• FTP-only connection - used to download firmware to Daniel Ultrasonic meters
• Tab from spreadsheet to next control instead of next cell
• TCP/IP meter connection database timeout - amount of time Daniel MeterLink waits
to respond to a request for data from the meter database (default 13 seconds)
• Override system default printer - used to change printer
• Product type preference - meter type you will most often connect, gas or liquid
2.6 Set up Modbus communications
Daniel 3810 Liquid Ultrasonic Flow Meters support RS-232 or RS-485 4-wire or 2-wire half
duplex serial interface to an external system (e.g., flow computer) using Modbus ASCII
protocol with the following parameters:
Modbus communication parametersTable 2-1:
Setting Value
Baud rate 19200
Data bits 7
Stop bits 1
Parity even
Protocol Modbus ASCII
Refer to your flow computer user manual to set I/O settings required to allow serial
communication with the Daniel 3810 Liquid Ultrasonic Flow Meters.
The Daniel 3810 Liquid Ultrasonic Flow Meters support ASCII and RTU Modbus
communication. For ASCII Modbus, both 7E1 and 7O1 are supported. For RTU Modbus,
8N1 is supported. The communication ports provide automatic protocol detection - only
the baud rate and Modbus ID need to be specified. Also, refer to the Daniel website and
select the Product page for the model of your meter.
http://www2.emersonprocess.com/en-US/brands/daniel/Flow/ultrasonics/Pages/
Ultrasonic.aspx
Initial communication set up
Operations 9