Technical data
Micropilot M FMR250 FOUNDATION Fieldbus
90
Hauser
Function Blocks
Block
Content
Execution time
Functionality
Resource Block
The Resource Block contains all the data that uniquely
identifies the field device. It is an electronic version of a
nameplate of the device.
enhanced
Analog Input
Block 1
Analog Input
Block 2
The AI block takes the manufacturer's input data, selec-
ted by channel number, and makes it available to other
function blocks at its output.
30 ms
standard
PID Block
The PID block serves as proportional-integral-derivative
controller and is used almost universally to do closed-
loop-control in the field including cascade and feedfor-
ward.
80 ms
standard
Arithmetic Block This block is designed to permit simple use of popular
measurement math functions. The user does not have to
know how to write equations. The math algorithm is
selected by name, chosen by the user for the function to
be done.
50 ms
standard
Input Selector
Block
The input selector block provides selection of up to four
inputs and generates an output based on the configured
action. This block normally receives its inputs from AI
blocks. The block performs maximum, minimum, middle,
average and ‘first good’ signal selection.
30 ms
standard
Signal Characte-
rizer Block
The signal characterizer block has two sections, each
with an output that is a non-linear function of the respec-
tive input. The non-linear function is determined by a sin-
gle look-up table with 21 arbitrary x-y pairs.
40 ms
standard
Integrator Block
The Integrator Function Block integrates a variable as a
function of the time or accumulates the counts from a
Pulse Input block. The block may be used as a totalizer
that counts up until reset or as a batch totalizer that has a
setpoint, where the integrated or accumulated value is
compared to pre-trip and trip settings, generating discrete
signals when these settings are reached.
60 ms
standard
