Endress+Hauser Fieldbus levelflex M FMP 40 Operating Instructions Manual page 43

Levelflex M FMP 40 with Foundation Fieldbus
Endress+Hauser
5.5.4 Block model of the Levelflex M
The Levelflex M contains the follwoing blocks:
• Resource Block (RB2)
s. Operating Instructions BA 013S: "Foundation Fieldbus - Overview"
• Transducer Block (TB)
contains the parameters relevant to the measurement
• Analog-Input-Block 1 bzw. 2 (AI)
scale the signal of the Transducer Block and transmit them to the PLCS
• PID Block (PID)
s. Operating Instructions BA 013S: "Foundation Fieldbus - Overview"
• Arithmetic Block (AR)
s. Operating Instructions BA 013S: "Foundation Fieldbus - Overview"
• Input Selector Block (IS)
s. Operating Instructions BA 013S: "Foundation Fieldbus - Overview"
• Signal Characterizer Block (SC)
s. Operating Instructions BA 013S: "Foundation Fieldbus - Overview"
• Integrator Block (IT)
s. Operating Instructions BA 013S: "Foundation Fieldbus - Overview"
Default Block configuration
The input and output variables of the blocks can be interconnected by a network
configuration tool (e.g. NI-Fieldbus configurator). The figure below shows, how these
connections are set by default.
Sensor
signal evaluation
Transducer Block
Parameters that
describe the
device (calibration,
linearisation etc.)
Display
Physical Block
parameters of the
physical unit, e.g.
tag No.
Analog Input Function Block 1
parameters that are important to
Primary value the process control system,
(main value) e.g. scaling, status
Analog Input Function Block 2
parameters that are important to
Secondary value the process control system,
e.g. scaling, status
(distance)
5 Operation
PID Block
Automation
functions
OUT
OUT
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