Configuration and Use Manual 89
Optional Configuration
Required Configuration Optional ConfigurationUsing the TransmitterFlowmeter Startup Required Configuration Optional ConfigurationUsing the TransmitterFlowmeter Startup Required Configuration Optional ConfigurationUsing the TransmitterFlowmeter Startup Required Configuration Optional ConfigurationUsing the TransmitterFlowmeter Startup
To configure the Modbus address:
• Using ProLink II, see Figure C-3.
• Using the Communicator, see Figure C-8.
• Using the display, see Figure C-14.
Enabling or disabling Modbus ASCII support
When support for Modbus ASCII is enabled, the service port can accept connection requests that use
either Modbus ASCII or Modbus RTU. When support for Modbus ASCII is disabled, the service port
cannot accept connection requests that use Modbus ASCII. Only Modbus RTU connections are
accepted.
The primary reason to disable Modbus ASCII support is to allow a wider range of Modbus addresses
for the service port.
To enable or disable Modbus ASCII support:
• Using ProLink II, see Figure C-3.
• Using the Communicator, see Figure C-8.
• Using the display, see Figure C-14.
Configuring the HART address
The transmitter’s HART address is used by devices on a network to identify and communicate with
the transmitter using HART protocol. The HART address must be unique on the network.
Valid HART addresses are 0–15.
To configure the HART address:
• Using ProLink II, see Figure C-3.
• Using the Communicator, see Figure C-8.
Note: This functionality is not available via the display menus.
Note: Devices using HART protocol to communicate with the transmitter may use either the HART
address or the HART tag (see Section 8.12) . You may configure either or both, as required by your
other HART devices.
Note: If you change the HART address, you may also want to change the Loop Current Mode
parameter. See the following section.
Configuring the Loop Current Mode parameter
The Loop Current Mode parameter is used to fix or unfix the mA output:
• If the Loop Current Mode parameter is disabled: The mA output is fixed at 4 mA, and
therefore cannot be used to report process data.
• If the Loop Current Mode parameter is enabled: The mA output will report process data as
configured.
You must use ProLink II to configure the Loop Current Mode parameter. See Figure C-3.
Note: Whenever you use ProLink II to set the HART address to 0, ProLink II also enables the Loop
Current Mode parameter (places a check in the checkbox). Whenever you use ProLink II to set the
HART address to any other value, ProLink II also disables the Loop Current Mode parameter. You
may accept this change or uncheck the checkbox before clicking OK or Apply.
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