Deltabar S
14 Endress+Hauser
Function Blocks
Block Content Number of
Function Blocks
Execution
time
Functionality
Resource Block The Resource Block contains all the data that uni-
quely 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,
selected by channel number, and makes it avai-
lable to other function blocks at its output.
Enhancement: digital outputs for process alarms,
fail safe mode
45 ms enhanced
Digital Input
Block
This block contains the discrete data of the diag-
nose block (selectable via a channel number 0 to
16) and provides them for the blocks at the out-
put.
40 ms standard
Digital Output
Block
This block converts the discrete input and thus
initiates an action (selectable via a channel num-
ber) in the dp flow block or in the service block.
Channel 1 resets the counter for max. pressure
transgressions..
60 ms standard
PID Block The PID block serves as proportional-integral-deri-
vative controller and is used almost universally to
do closed-loop-control in the field including cas-
cade and feedforward. Input IN can be indicated
on the display. The selection is performed in the
display block
(DISPLAY_MAIN_LINE_CONTENT).
120 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 recei-
ves its inputs from AI blocks. The block performs
maximum, minimum, middle, average and ‘first
good’ signal selection. INPUT IN1 to IN4 can be
indicated on the display. The selection is perfor-
med in the display block
(DISPLAY_MAIN_LINE_CONTENT).
35 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 respective input. The non-linear function is
determined by a single look-up table with 21 arbi-
trary x-y pairs.
30 ms standard
Integrator Block The Integrator Function Block integrates a vari-
able 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.
35 ms standard
Analog Alarm
Block
This block contains all process alarm conditions
(working like a comparator) and represents them
at the output.
35 ms standard
Additional Function Block informations:
Instantiate Function Block YES
Number of instantiate blocks 15
To Next Page
Loading...
