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90 EB 8389 EN

Dynamic HART® variables

6 Dynamic HART

variables

3730-2 3730-3 3731-3 3730-4 3730-5 3731-5

• •

The HART

specication denes four dynam-

ic variables consisting of a value and an en-

gineering unit. These variables can be as-

signed to device parameters as required. The

universal HART

command 3 reads the dy-

namic variables out of the device. This al-

lows manufacturer-specic parameters to al-

so be transferred using a universal com-

mand.

Depending on the positioner, the dynamic

HART

variables can be assigned by the DD

or in TROVIS-VIEW

[Settings > Operation unit] as shown in

Table4:

Settings > Operating unit

− Assignment secondary variable: Variable se-

lected according to Table4 [Valve position]

− Assignment tertiary variable: Variable selected

according to Table4 [Set point deviation e]

− Assignment quaternary variable: Variable se-

lected according to Table4 [Total valve travel]

The resetting of HART

variables causes all

variables to be reset at the same time.

Operation > Reset

− Reset 'HART parameter'

Samson 373 Series Operating Instructions

Other manuals for Samson 373 Series