Analog Input Signal Processing Freely Connected (S4 = 1) - Siemens SIPART DR22 Manual

Manual 1 Technical Description
1.5 Functional description of the structure switches
1.5.2

Analog input signal processing freely connected (S4 = 1)

1.5.2 Analog input signal processing freely connected (S4 = 1)
The structure switch setting S4=1 cancels the permanent connection at S4=0 in the analog in-
put range and replaces it with a freely connectable input range. The freely connectable input
range basically represents a multifunctional unit, configuring takes place according to the same
rules.
Up to the outputs AE1A to AEbA (AE11A), the signal processing is identical to that described in
chapter 1.5.1, page 22. The function inputs FE1 to FE12 also operate in the same way with the
difference that FE5 (follow-up input) and FE6 (position feedback input) can be used in parallel
and with the difference that FE5 (follow--up input) and FE6 (position feedback input) can be
used in parallel and connected with different signals.
Nine different function blocks which occur with different frequency can now be connected
absolutely freely between the outputs AE1A to AEbA and the function inputs FE1 to FE12. The
outputs AE1A to AEbA represent data sources whilst the function inputs FE1 to FE12 are data
sources. Parallel to the outputs, 15 connectable linear parameters are arranged with a setting
range of -1.999 to 19.999 (corresponding to -199.9 % to 1999.9 %), a number of normal
constants as well as other variables gained from the controller as data source.
The function blocks have a different number of inputs (data sinks) and 1 output each (data
source) depending on the function depth.
The function blocks "function transmitter" and "correction computer" have assigned parameters
which can be set in the structuring mode oFPA. The connectable parameters P1 to P15 are set
in the parameterization mode onPA.
By structuring on the front module the necessary functions are selected or defined (structuring
mode FdEF), connected (structuring mode FCon) and correctly positioned in time in the cycle
(structuring mode FPoS), see chapter 3.3.7, page 201 to 3.3.9, page 205. Connection is abso-
lutely free, i.e. any data source can be connected with any data sink. The operating effort is
minimized by fading the data sources and sinks from undefined function blocks. In addition the
data sinks which are not obliagatory for a function are pre--occupied by constants which can be
overwritten. The inputs pre--occupied with ncon (not connected) are absolutely essential for the
function and must be connected. This very variable connection facility in the analog input range
also enables complex control tasks to be solved.
No distinction is made between analog and digital signals. Digital inputs have a threshold value
of 0.5. Digital outputs supply a value of 0 % (0) or 100 % (1).
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SIPART DR22 6DR2210
C79000-G7476-C154-03