Defining shortaddress, Selecting locatemethod – Rockwell Automation 937CU-AIHLP-DC1 HART Loop Converter Installation Instructions User Manual

Page 30

Advertising
background image

Bul. 937C HART Loop Converter Installation Instructions

Editing device data: Input

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!
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 approximately 60 s. After this period of time, the isolated barrier
activates the burst configuration of the field device.

28

Advertising