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The menu » Settings «
Submenu » Communication «
The submenu » Communication « permits various settings to by made for the inter-
faces.
HART interface
This group contains the setting functions for the HART interface.
– Polling address
The polling address configures the transmitter either for the analogue mode (4 to
20 mA) or the multidrop mode. Setting the polling address to " 0 " enables the ana-
logue mode (4 to 20 mA). To enter multidrop mode, the polling address must be set
to a value in the range from " 1 " to " 15 ", which disables the analogue interface and
freezes it to a constant current of approx. 3 mA. In order to enable the central con-
troller to request the unique identifier (unambiguous HART address) using HART
command #0, all transmitters located on one cable trunk need to be configured with
a different polling address. It is best to assign sequential polling addresses, starting
with "1".
This setting corresponds to the HART command #6 ("Write Polling Address").
● Select the menu items » Settings «, » Communication «, » Hart interface « and
» Polling address « in this order, pressing the » « key after each selection.
● Use the » « and » « keys to set each position of the polling address
and press the » « key to confirm the setting.
● Press the » « key to confirm the complete polling address.
– Unique Identifier
This function can be used to read out the unique identifier (unique HART address),
which must be known for the addressing in almost all HART commands. However,
knowledge of the unique identifier is necessary only for systems which are not able
to read out the unique identifier with the HART command #0 in the short-frame for-
mat or the HART command #11. The display corresponds to the address returned by
the HART command #0 ("Read Unique Identifier") or #11 ("Read Unique Identifier
associated with Tag").
● Select the menu items » Settings «, » Communication «, » Hart interface « and
» Identifier « in this order, pressing the » « key after each selection.
— The unique identifier will be displayed.
OK
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OK
OK
OK
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