Cerabar S/Deltabar S Description of parameters (FF configuration program)
Endress+Hauser 21
6 Description of parameters
(FF configuration program)
!
Note!
• In FOUNDATION Fieldbus, all the device parameters are categorised depending on their
functional properties and tasks and assigned to the Resource Block, the Transducer Blocks and the
function blocks. This Section describes the parameters of the Resource Block, the Transducer
Blocks and the Analog Input Block. For a parameter description of other function blocks, such as
the PID or Discrete Output Block, see Operating Instructions BA013S "FOUNDATION Fieldbus
Overview" or the FOUNDATION Fieldbus Specification.
• Some parameters are only displayed if other parameters are appropriately configured. For
example, the PRESSURE_1_UNIT_TEXT/CUSTOMER UNIT P parameter is not displayed unless
the "User Unit" option was selected for the CAL_UNIT parameter. There is a comment in the
parameter description here stating: Note: prerequisite: CAL_UNIT = User Unit.
• Parameter names are written in upper case in the text.
6.1 Deltabar S and Cerabar S block model
Deltabar S/Cerabar S has the following blocks:
• Resource Block (device block)
• Transducer Blocks
– Pressure Transducer Block
This Block supplies the output variables PRIMARY_VALUE and SECONDARY_VALUE. It
contains all the parameters to configure the measuring device for the measuring task such as
measuring mode selection, linearisation function and unit selection.
– Service Transducer Block
This Block supplies the output variables PRESSURE, MAX. MEAS. PRESS. and
COUNTER: P > Pmax. It also includes all the counters for measuring range overshoot/
undershoot for pressure and temperature, minimum and maximum measured values for
pressure and temperature and the HistoROM function.
– Totalizer Transducer Block (Deltabar S only)
This Block supplies the output variable TOTALIZER_1_VALUE/TOTALIZER 1. It contains all
the parameters that are needed to configure this totalizer.
– Display Transducer Block
This Block does not return any output variable. It contains all the parameters for configuring
the on-site display such as DISPLAY_LANGUAGE/LANGUAGE and DISPLAY_CONTRAST.
– Diagnostic Transducer Block
This Block does not return any output variable. It contains the simulation function for the
Pressure Transducer Block, parameters to configure the alarm response and the user limits for
pressure and temperature.
• Function blocks
– Deltabar S: 3 Analog Input Blocks (AI), Cerabar S: 2 Analog Input Blocks (AI)
– Discrete Output Block (DO)
– PID Block (PID)
– Arithmetic Block (ARB)
– Signal Characterizer Block (SCB)
– Input Selector Block (ISB)
– Analog Alarm Block (AALB)
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