SMAR TT302, Installation, Operation & Maintenance Instruction Manual

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TT302 – Fieldbus Temperature Transmitter
3-8
The interface between the user is described very detailed on the " General Installation,
Operation and Maintenance Procedures Manual ". Please take a detailed look in that
manual in the chapter related to "
Programming Using Local Adjustment
". The resources
on the transducer display, as well as for all the Series 302 field devices from SMAR, has
the same methodology to handle with it. So, since the user has learned once, he is
capable to handle all kind of field devices from SMAR.
All function block and transducers defined according Foundation Fieldbus

have a
description of their features written on binary files, by the Device Description Language.
This feature permits that third parties configurator enabled by Device Description Service
technology can interpret these features and make them accessible to configure. The
Function Blocks and Transducers of Series 302 have been defined rigorously according
the Foundation Fieldbus specifications in order to be interoperable to other parties.
In order to able the local adjustment using the magnetic tool, it is necessary to previously
prepare the parameters related with this operation via SYSCON (System Configuration).
The
Figure 3.7 - Parameters for Local Adjustment Configuration and the Figure 3.8 -
Parameters for Local Adjustment Configuration show all parameters and their respective
values, which shall be configured in accordance with then necessity of being locally
adjusted by means of the magnetic tool. All values shown on the display are default
values.
There are seven groups of parameters, which may be pre-configured by the user in order
to able, a possible configuration by means of the local adjustment. As an example, let’s
suppose that you don’t want to show some parameters; in this case, simply write an
invalid Tag in the parameter, Block_Tag_Param_X. Doing this, the device will not take
the parameters related (indexed) to its Tag as a valid parameters.
Definition of Parameters and Values
Block_Tag_Param
This is tag of the block to which the parameter belongs. Use up to a maximum of 32
characters.
Index_Relative
This is the index related to the parameter to be actuated or viewed (0, 1, 2…). Refer to
the "
Function Blocks Manual " to know the desired indexes, or visualize them on the
SYSCON by opening the desired block.
Sub_Index
In case you wish to visualize a certain tag, opt for the index relative equal to zero, and for
the sub-index equal to one (refer to paragraph Structure Block in the Function Blocks
Manual).
Mnemonic
This is the mnemonic for the parameter identification (it accepts a maximum of 16
characters in the alphanumeric field of the display). Choose the mnemonic, preferably
with no more than 5 characters because, this way, it will not be necessary to rotate it on
the display.
Inc_Dec
It is the increment and decrement in decimal units when the parameter is Float or Float
Status time, or integer, when the parameter is in whole units.
Decimal_Point_Numb .
This is the number of digits after the decimal point (0 to 3 decimal digits).
Access
The access allows the user to read, in the case of the “Monitoring” option, and to write
when "action" option is selected, then the display will show the increment and decrement
arrows.