Activating Multidrop Mode; Setting Devices Address; Locating An Instrument With Tags; Browsing Communication Info - ABB LWT300 series User Manual

Activating multidrop mode

In multidrop mode, the analog loop current is fixed at 4 mA and it is possible to have more than one
instrument on a signal loop. Each instrument must have a unique address.
To make your instrument available on a network, you need to activate the multidrop mode.
1 Select Communication > Multidrop Mode.
2 Press Edit.
3 Highlight On and press OK. Your instrument will now be able to appear on a network once you set
the instrument address.

Setting devices address

To set the instrument address so that it can be identified on a network:
1 Select Communication > Device Address.
2 Press Edit.
3 Set an address between 0 and 63 and press OK. Your instrument should now appear on a network if
you have activated the multidrop mode.

Locating an instrument with tags

A tag is intended to simplify identifying the location of a LWT instrument on the network, in the plant,
etc.
To create a tag for the instrument:
1 Select Communication > Tag.
2 Press Edit.
3 Set a tag name (see "Setting a value" on page 31).

Browsing communication info

From the Communication menu, you can quickly browse through the various factory-set
communication parameters such as:
• The last command received
• The device ID
• The manufacturer ID
• The device type
• The device descriptor
• The device revision number
• The HART revision number
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