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Parameters
Parameters
Input parameters
En
Reset
Counter value
Output parameters
Frequency
Value valid
Error
5.8.4
Flow calculation
Function
Each time it is run through the block forms the difference of the current value at the "Counter
value" input and the value from the previous run through.
This difference divided by the time (s) between the current and last run through produces the
current "Flow" (volume flow) as amount per time unit (Q/t) that is included in the calculation
of the "Pulse weighting" parameters.
RTU3030C
Operating Instructions, 09/2017, C79000-G8976-C382-04
Tag type / range of
Description
values
Enable parameter, see section Often used parameters
(Page 198).
True / False
Resets the two outputs to 0 on a positive edge (0 → 1).
Digital input / output /
With the setting "True", the outputs remain permanently
bit memory
at 0.
STATUS_ERROR
Analog input / bit
Counter input. Can, for example, be the output of the
memory
"Counter" block.
Event counter / usage
For information on processing see above.
meter
Analog memory bit
Tag in which the calculated frequency value is output.
Configured as a
•
floating-point
number:
3.402823 e-38 ..
3.402823 e+38
Configured as a
•
counter:
0 .. 4294967295
Digital output / bit
Tag in which the the validity identifier of the frequency
memory
value calculated by the block is output:
•
•
Digital output / bit
Error display:
memory
•
•
5.8 Counter and summation blocks
1 = The calculated value is valid and can be used.
0 = The calculated value is invalid.
0: Block processing completed without errors
1: Block processing aborted with an error
For the meaning, see Often used parameters
(Page 198).
Programming
233
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