Actuator Input Output Signals
Publication PUB089-005-00_0618 47 of 116
6.2 Transducer Block
The Transducer Block is at the heart of the function block structure in the FIC. It contains all of the
information with regards to setup and control of the actuator as well as its status feedback and
provides the link between standard function blocks and the actuator mechanisms. Links between the
actuator hardware and transducer block are already made to allow the user to access defined settings
for the device.
The links between the Transducer block and the Input / Output function blocks are also defined and
may not be altered. Data may be read from the parameters but not all parameters permit write
commands. Writes are limited to the parameters used to set up the actuator control functions.
Before the actuator is used, the settings associated with its performance must be adjusted to match
the application for the valve. These settings are contained in parameters within the Transducer block.
On installing the card,
The default values in the table will be present.
Parameter values should be adjusted to allow for the desired control of the actuator.
6.2.1 Transducer block parameters
The table lists all the parameters in the Transducer block. Many of these are required by the
Foundation standards and are necessary for the card to operate on the highway. In addition, the block
contains many more parameters that are actuator or set-up related. The parameters are categorised
as follows:
The parameters contained in the table below have the following attributes:
• Range is the range of the parameter. Where ’value’ is stated, then this is the decimal value.
Where ‘bits’ are stated, then these are bit parameters starting at bit 0.
• Default is the default value for the parameter.
• Units are the unit type for the parameter (E – enumeration, S – String).
• Class is whether the parameter is read-only (RO) or read-write (RW).
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