9.4 HART
®
device variables
The HART
®
dynamic variables PV (Primary Variable), SV (Secondary Variable), TV (Third Variable)
and QV (Fourth Variable) can be assigned to any of the device variables.
The HART
®
dynamic variable PV is always connected to the HART
®
current output which is, for
example, assigned to level measurement.
HART
®
device variable
Code
Type
level
0
linear
distance
1
linear
interface level
2
linear
interface distance
3
linear
layer
4
linear
interface conversion
5
1
distance conversion
6
1
layer conversion
7
1
level conversion
8
1
level mass
9
1
distance mass
10
1
1
This depends on the values entered in the conversion table
Technology Solutions
Instruction Manual
Tek-Flex
4100A
www.tek-trol.com
1
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