Siemens SITRANS P DS III - Page 83

Operation
6.5 Local operation
SITRANS P DS III with PROFIBUS PA
Operating Instructions, 06/2013, A5E00053276-07
83
Parameter
The following tables give the meaning of the variables, depending on the value of the
"transmitter type" parameter. This allows you to select the units available in mode 14.
Table 6- 5 Measurement type "Absolute pressure", "Differential pressure" and "Pressure"
Source of measured value display
Variable
Available unit
From analog input function block:
[0] : Output : OUT (P)
(U)
Pressure
User specific
From pressure transducer block:
[1] : Secondary variable 1
SEC 1
(P)
Pressure
[2] : Measurement value (primary
variable)
PRIM (P) Pressure
[3] : Sensor temperature
TMP S
(T)
Temperature
[4] : Electronics temperature
TMP E
(T)
Temperature
[7] : Raw pressure value
SENS
(P)
Pressure
Table 6- 6 Measurement type "Flow"
Source of measured value display
Variable
Available unit
From analog input function block:
[0] : Output OUT (L)
(U)
Level
User specific
From pressure transducer block:
[1] : Secondary variable 1
SEC 1
(P)
Pressure
[2] : Measurement value (primary
variable)
PRIM (L) Level
[3] : Sensor temperature
TMP S
(T)
Temperature
[4] : Electronics temperature TMP E (T) Temperature
[5] : Secondary variable 3:
SEC 3
(M)
Mass flow
[7] : Raw pressure value
SENS
(P)
Pressure
From totalizer function block:
[6] : Totalizer output TOTAL (V)
(ΣM) *)
Volume
Total mass flow
Flow not relevant for relative and
absolute pressure
*) The option of selecting the physical unit is additionally determined by the channel setting (mass or
volume) of the analog input and totalizer function blocks.