SMAR fy303, Operation, Maintenance & Instruction Manual

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Section 3
3.1
CONFIGURATION
This section describes the characteristics of the blocks in the
FY303 . They follow the Profibus PA
specifications, but in terms of transducer blocks, the output transducer block and display, they have
some special features on top of this.
The
FY303 contains one Analog Output block, one resource block, one display transducer block and
one transducer block.
For explanation and details of function blocks, see the “Function Blocks Manual”.
The 303 Smar family is integrated in Simatic PDM , from Siemens. It is possible to integrate any 303
Smar devices into any configuration tool for Profibus PA devices. It is necessary to provide a Device
Description or Drive according to the configuration tool. In this manual is taken several examples
using
Simatic PDM .
Offline Configuration
1. First run “Download to PG/PC” option to assure valid values.
2. Run after the Menu Device option to configure the required parameters using the related menus.
NOTE
It is not advisable to use the “Download to Device” option. This function can misconfigure the equipment.
Transducer Block
Transducer block insulates function block from the specific I/O hardware, such as sensors,
actuators. Transducer block controls access to I/O through manufacturer specific implementation.
This permits the transducer block to execute as frequently as necessary to obtain good data from
sensors without burdening the function blocks that use the data. It also insulates the function block
from the manufacturer specific characteristics of certain hardware. By accessing the hardware, the
transducer block can get data from I/O or passing control data to it. The connection between
Transducer block and Function block is called channel. These blocks can exchange data from its
interface.
Normally, transducer blocks perform functions, such as linearization, characterization, temperature
compensation, control and exchange data to hardware.
How to Configure a Transducer Block
The transducer block has an algorithm and a set of contained parameters.
The algorithm describes the behavior of the transducer as a data transfer function between the I/O
hardware and other function block. The set of contained parameters, it means, you are not able to
link them to other blocks and publish the link via communication, defines the user interface to the
transducer block. They can be divided into Standard and Manufacturer Specific.
The standard parameters will be present for such class of device, as pressure, temperature,
actuator, etc., whatever is the manufacturer. Oppositely, the manufacturers’ specific ones are
defined only for its manufacturer. As common manufacturer specific parameters, we have calibration
settings, material information, linearization curve, etc.
When you perform a standard routine as a calibration, you are conducted step by step by a method.
The method is generally defined as guide line to help the user to make common tasks. The
configuration tool identifies each method associated to the parameters and enables the interface to
it.