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Programming
5.5 Blocks for basic types of calculation
Parameters
Parameters
Input parameters
En
Input 1 .. Input 4
Output parameters
Sum
Error
5.5.2
Subtraction
Function
The block subtracts the values of one to three inputs (Input 2 + Input 3 + Input 4) from the
value of the input "Input 1". The difference is written to the output.
Parameters
Parameters
Input parameters
En
204
Tag type / range of
Description
values
Enable parameter, see section Often used parameters
(Page 198).
Analog input / bit
The values of the activated inputs are used for the addi-
memory
tion.
Event counter / usage
Inputs with the setting "Input unused" are not evaluated.
meter
Analog memory bit
Tag in which the calculated sum 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
Error display:
memory
•
•
Tag type / range of
Description
values
Enable parameter, see section Often used parameters
(Page 198).
0: Block processing completed without errors
1: Block processing aborted with an error
For the meaning, see Often used parameters
(Page 198).
Operating Instructions, 09/2017, C79000-G8976-C382-04
RTU3030C
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