27
Endress+Hauser
HART Loop Converter HMX50
5. Confirm your entry with OK.
Defining ShortAddress
The defined short address is needed for identification of the field device during the
localization phase.
1. To enter a short address between 0 ... 15, press the
▴ or ▾ buttons.
2. Confirm your entry with OK.
Selecting LocateMethod
According to the HART standard, more than one HART field device can be present in a
HART circuit. But the device can communicate only with a single HART field device. This
HART field device is identified during the localization phase.
1. Select the localization method with the
▴ or ▾ buttons.
2. Select fixed.
The device communicates with the field device that has a short address defined under
ShortAddress.
3. Choose search.
During booting, the device searches for the field device with the smallest short address,
beginning with the short address defined under ShortAdress. The address of the field
device found is stored by the device under ShortAddress. This accelerates the device
starting when it boots again.
4. Confirm your entry with OK.
Note that the field device can be put into burst mode, in accordance to the isolated barrier
configuration. This also applies when a different HART master is in the HART circuit. If a
different HART master changes the burst configuration of the field device, the isolated
barrier waits until the other HART master logs out of the HART circuit. The isolated barrier
assumes that the other HART master is logged off when it does not send a message for ap-
proximately 60 s. After this period of time, the isolated barrier activates the burst configu-
ration of the field device.
BA00371FEN_1417.fm Page 27 Tuesday, August 15, 2017 4:08 PM
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