Badger Meter SRD/SRI Valve Positioners - Manual (Page 95)

Data Screen
For Profibus devices, an additional Data Screen may be opened to display additional Profibus specific parameters . To view
the Profibus Data, select View – Profibus Data . This function opens a modeless dialog . The displayed information updates
approximately once every two seconds .
Fields Description
Readback The actual position of the actuator/valve within the travel span in units of PV-SCALE .
Position D The current position of the actuator/valve (discrete) . Possible values are: NOT INITIALIZED (before an autostart
has been performed), CLOSED, OPENED and INTERMEDIATE .
FB-Mode Actual Mode of the Function Block .
SP
Setpoint SP in units of PV-SCALE . This setpoint is used as desired value , when the function block is in Mode
AUTO and the status of SP is ok (for example, Good (Non Cascade) = 0x80) .
RCAS_IN
Setpoint RCAS_IN in units of PV-SCALE . This setpoint is normally transmitted by a DCS System . This setpoint is
used as desired value , when the function block is in Mode RCAS and the status of RCAS_IN is ok (for example,
Good (Cascade) =0xC0) .
RCAS_
OUT
Setpoint RCAS_OUT in units of PV-SCALE with status, which is used as input for the function block algorithm .
Depending on the mode of the function block contains the setpoint SP or RCAS_IN . RCAS_OUT is offered for
the DCS- System or other function blocks .
OUT
Output Setpoint of the function block in units of OUT-SCALE with status . It is valid, when the function block is
in mode AUTO or RCAS . In mode MAN, this value can be specified by the operator/engineer .
Profibus Function Block Page
For the detailed configuration of the Profibus Function Block parameters, use the Profibus Function Block page .
Fields Entries
Target Mode Contains the desired mode of the function block .
PV-SCALE:
Conversion of a process value in the defined engineering units to a normalized value in percent as the
input value of the function block . It contains the high and low scale values, engineering units code,
and number of digits to the right of the decimal point . As default, PV-PSCALE is configured to percent,
meaning that the Variables SP, Readback, RCAS_IN and RCAS_OUT, which are depending on PV-SCALE, are
displayed in the range 0…100% .
OUT-SCALE:
Conversion of the normalized Output Signal (in percent) of the function block to the OUT parameter in the
defined engineering units . It contains the high and low scale values, engineering units code, and number
of digits to the right of the decimal point . As default, OUT- SCALE is configured to percent, meaning that
the Variable OUT is displayed in the range 0…100% .
Simulation
Allows definition of a value and a status . When Simulation is enabled, this value and status is given in
Readback instead of the real position of the actuator/valve . This set of parameters is intended only for
commissioning and maintenance reasons .
Profibus Configurations
Page 95 August 2014 POS-UM-00011-EN-02