Analog Value Processing - Siemens Simatic RTU303xC Series Operating Instructions Manual

Program blocks
5.7 Blocks for analog value functions
5.7.8

Analog value processing

Function
The block has the following functions:
● Smoothing
The function reads in the analog signal at the input according to the number of "Sampling
cycles" and outputs the mean value.
As an option the value output can be scaled with the following functions:
● Gain factor
● Zero point offset
In the program a total of up to 4 of these blocks can be used.
Parameters
Parameters
Input parameters
En
Input
Function parameters
Sampling cycles
Gain
Zero point offset
292
Tag type / range of Description
values
Enable parameter, see section Often used parame-
ters (Page 252).
Analog signal to be processed
Analog input / bit
•
memory
Event counter /
•
usage meter
1 .. 16 The number of "Sampling cycles" specifies how
many values of the analog signal are acquired for
one processing cycle of the block.
One sampling cycle corresponds to one update
cycle. In every update cycle, the RTU acquires one
value.
The number of update cycles is the same as the
number of "Sampling cycles".
±3.402823 e-38 .. This value is multiplied by the calculated mean
±3.402823 e+38 value.
Max. 19 characters,
display of max. 4
decimal places
±3.402823 e-38 .. This value is added to the product of mean value
±3.402823 e+38 and gain.
Max. 19 characters,
display of max. 4
decimal places
Operating Instructions, 06/2019, C79000-G8976-C382-06
RTU303xC