Volume pwrb
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Class Sum
Version	1.0
Modified	08-MAR-2026 11:05:32.00
Code	rt_plc_arithm.c

 Summator.


 Weighted summing unit for up to 8 inputs. Used inputs
 have to be chosen consecutively with beginning from
 In1, which is the upper input.

 Each input has its own weighting factor, FVect0, FVect1
 etc.
 A constant value, Const, can be added to the sum.

Example


 1. To calculate 2.2 + IN1 + 2 IN2 - 1.5 IN3
    - Mark the three first inputs Used in a Sum object
    - Connect the three inputs
    - Set Const = 2.2
    - Set the weighting factors FVect to 1.0, 2.0 and -1.5

 2. To calculate the average of 5 signals
    - Mark the five first inputs Used in a Sum object
    - Connect the five inputs
    - Set the weighting factors FVect to 0.2

 3. The following objects accumulate the value of an analog signal.

RtBody attributes pwr_sClass_sum
Float32	In1	IN1	Value of input signal 1, input signal 2, ..., input signal 8.
Float32	In2	IN2
Float32	In3	IN3
Float32	In4	IN4
Float32	In5	IN5
Float32	In6	IN6
Float32	In7	IN7
Float32	In8	IN8
Float32	ActVal	VAL	The weighted sum
Float32	Const	Const	A constant value added to the sum.
Array of Float32	FVect	FVect	ActVal = Const + ( Fvect[0] * In1 + ... + Fvect[7] * In8)
Int32	AccConst	AccConst	The operator's authorities to change Const. 0 -- Changes not allowed. != 0 -- Changes allowed.
Float32	MinConst	MinConst	The minimum and maximum allowed value of Const at changes made by an operator.
Float32	MaxConst	MaxConst
Array of Int32	AccFact	AccFact	The operator's authorities to change FVect[] 0 -- Changes not allowed. != 0 -- Changes allowed.
Array of Float32	MinFact	MinFact	The minimum and maximum allowed value of the weighting factors Fvect[] at changes made by an operator.
Array of Float32	MaxFact	MaxFact

DevBody attributes
PlcNode	PlcNode

GraphPlcNode
object_type	120
parameters[0]	8
parameters[1]	0
parameters[2]	1
parameters[3]	0
subwindows	0
graphmethod	1 (standard, common attributes)
graphindex	0
default_mask[0]	3
default_mask[1]	1
segname_annotation	1
compmethod	28
compindex	0
tracemethod	0
traceindex	0
executeordermethod	2
objname	Sum
graphname	Sum
debugpar

Template Object
FVect[0]	1.0
FVect[1]	1.0
FVect[2]	1.0
FVect[3]	1.0
FVect[4]	1.0
FVect[5]	1.0
FVect[6]	1.0
FVect[7]	1.0

Attributes detail

In1 Input
Class	Input
Type	Float32
Flags	STATE \| NOEDIT \| REDUTRANSFER
GraphName	IN1
Body	RtBody

 Value of input signal 1, input signal 2, ..., input
 signal 8.

In2 Input
Class	Input
Type	Float32
Flags	STATE \| NOEDIT \| REDUTRANSFER
GraphName	IN2
Body	RtBody

In3 Input
Class	Input
Type	Float32
Flags	STATE \| NOEDIT \| REDUTRANSFER
GraphName	IN3
Body	RtBody

In4 Input
Class	Input
Type	Float32
Flags	STATE \| NOEDIT \| REDUTRANSFER
GraphName	IN4
Body	RtBody

In5 Input
Class	Input
Type	Float32
Flags	STATE \| NOEDIT \| REDUTRANSFER
GraphName	IN5
Body	RtBody

In6 Input
Class	Input
Type	Float32
Flags	STATE \| NOEDIT \| REDUTRANSFER
GraphName	IN6
Body	RtBody

In7 Input
Class	Input
Type	Float32
Flags	STATE \| NOEDIT \| REDUTRANSFER
GraphName	IN7
Body	RtBody

In8 Input
Class	Input
Type	Float32
Flags	STATE \| NOEDIT \| REDUTRANSFER
GraphName	IN8
Body	RtBody

ActVal Output
Class	Output
Type	Float32
Flags	STATE \| NOEDIT \| REDUTRANSFER
GraphName	VAL
Body	RtBody

 The weighted sum

Const Intern
Class	Intern
Type	Float32
Flags
GraphName	Const
Body	RtBody

 A constant value added to the sum.

FVect Intern
Class	Intern
Type	Array of Float32
Flags	ARRAY
Elements	8
GraphName	FVect
Body	RtBody

 ActVal = Const + ( Fvect[0] * In1 + ... + Fvect[7] * In8)

AccConst Intern
Class	Intern
Type	Int32
Flags
GraphName	AccConst
Body	RtBody

 The operator's authorities to change Const.

    0   -- Changes not allowed.
    != 0 -- Changes allowed.

MinConst Intern
Class	Intern
Type	Float32
Flags
GraphName	MinConst
Body	RtBody

 The minimum and maximum allowed value of Const at
 changes made by an operator.

MaxConst Intern
Class	Intern
Type	Float32
Flags
GraphName	MaxConst
Body	RtBody

AccFact Intern
Class	Intern
Type	Array of Int32
Flags	ARRAY
Elements	8
GraphName	AccFact
Body	RtBody

 The operator's authorities to change FVect[]
    0   -- Changes not allowed.
    != 0 -- Changes allowed.

MinFact Intern
Class	Intern
Type	Array of Float32
Flags	ARRAY
Elements	8
GraphName	MinFact
Body	RtBody

 The minimum and maximum allowed value of the weighting
 factors Fvect[] at changes made by an operator.

MaxFact Intern
Class	Intern
Type	Array of Float32
Flags	ARRAY
Elements	8
GraphName	MaxFact
Body	RtBody

PlcNode Buffer
Class	Buffer
Type	PlcNode
Flags	INVISIBLE
Body	DevBody