Valve/Actuator Design - Pepperl+Fuchs FieldConnex F2D0-MIO-Ex12.FF Series Manual

Multi-Input/Output Device
Parameterization and Operation
More Information
For more information on the paramterization of the transducer block, see chapter 4.5.3.
Figure 4.1
Additional Diagnostic Information
In addition to the reference value for the valve position and the current valve position, also
diagnostic information is transferred between the function block and the transducer block.
Thus, it is possible to receive diagnostic messages from the transducer block also with control
systems which do not support alarms of transducer blocks.
For more information, see chapter 4.5.12.
Primary Value Parameter - Inversion and Behavior in Cyclic Transfer
The READBACK_D parameter is shown with the Primary Value parameter within the
DO function block. If the IO option "invert" is activated in the function block, the numerical value
is inverted. That means, a value of "0" becomes "1", a value  0 becomes "0".
If the current valve position is to be cyclically transferred to a control system or used in a
function block application, the value of the Primary Value parameter can be transferred to
BKCAL_OUT_D via the IO option "PV for BKCal_Out". If this option is not activated, the value
of BKCAL_OUT_D is only a copy of the current reference value.
4.5.2

Valve/Actuator Design

This section explains the setting options for the behavior of the valve or actuator with the Act.
Fail Action parameter, i.e., the actuator fail action.
Note that for setting this parameter, the target mode of the transducer block must be set to "Out
of Service" (OOS).
Function Blocks
CH=1 CH=3 CH=0 CH=4
Transducer Blocks
Interface of DO function block/transducer block
DO Function Block
READBACK_D
OUT_D
Reference value
Primary value
Transducer Block
31