ValueRamp

Function

The statement Value Ramp can apply rising and falling ramps to the input signal and connect the ramped signal to the output..
A second input enables or disables the ramps.


CAUTION

A value 0 for slope parameters is not recommended, since the output value will not be changed in that direction any more. When P1 = 0, the output signal will not increase any more. When P2 = 0 the output value cannot decrease any more.


Value Ramp Description

The value ramp heaves as shown in the following two picture.
The first picture shows the behavior using only the input “In Value”. The input “In Direct” is set to the value false in the statements property sheet.


Fig. 255.   Value Ramp: One Input


The next picture shows the behaviour using both inputs “In Value” and “in Direct”. As soon as input “In Direct” switches to the value true, the output will follow the input “in Value” directly. Otherwise the ramps will be applied.


Fig. 256.   Value Ramp: Two Inputs


Fig. 257.   Wire-sheet Icon

Fig. 258.   Property Sheet

Fig. 259.   Slot Sheet

Inputs and Outputs

Table 151.   Inputs

Inputs

Type

Functional description

In Value

numeric

Input value

In Direct

boolean

binary input

When this input value is false, the rising and falling ramps are enabled.

When the input is true the output follows the input “In Value” directly without ramps.

In Enabled

boolean

If the input “In Enabled” is set to false disabled in the slot sheet, the output “Out” will be disabled and is set to the value “0”.


Table 152.   Outputs

Outputs

Type

Functional description

Out Y1

numeric

Sequence Y1 output (heating)

Out Y2

numeric

Sequence Y2 output (mixing dampers; energy recovery)

Out Y3

numeric

Sequence Y1 output (cooling)


Parameter List

Table 153.   Parameter List

Description

Value Range

Default Value

Unit

Rising slope

0...

1

1 / min

Falling slope

0...

1

1( min