This function generates a sawtooth-shaped signal profile. Each sawtooth consists of a defined number of steps (increments).
LGF_CountRisInDWord
in the future!LGF_SawTooth (FB) | ||||||||
---|---|---|---|---|---|---|---|---|
Int | startValue | value | Int | |||||
Time | timeRange | |||||||
Int | incrementRange | |||||||
Int | numberSteps | |||||||
Bool | endlessSteps | |||||||
Bool | reset | |||||||
Identifier | Data type | Default value | Description |
---|---|---|---|
startValue | Int | 0 | Start value at which the signal begins. |
timeRange | Time | T#0s | Time after which the output parameter `value` is incremented |
incrementRange | Int | 0 | Size of the jump from one increment to the next. |
numberSteps | Int | 0 | Number of increments per sawtooth. (In the case of an endless sawtooth signal, this information is not necessary). |
endlessSteps | Bool | FALSE | Specifies whether an endless sawtooth signal will be generated. `TRUE` - Activated, `FALSE` - Disabled |
reset | Bool | FALSE | Sawtooth starts again at the start value, `startValue`. |
Identifier | Data type | Description |
---|---|---|
value | Int | Current value of the sawtooth signal. |
reset
.The block calculates the values for a sawtooth-shaped signal profile, which is output to the output parameter value
. The signal begins with the start value startValue
and is added with the value increment
after each elapse of the time interval timeRange
. The value can also be negative.
If the variable endlessSteps
is set to FALSE
, the number of add operations is counted. If this exceeds the value numberSteps
, the output parameter value
is set back to the start value. A new sawtooth begins.
If the variable endlessSteps
is set to TRUE
, the value increment
is added without interruption, starting once at startValue
. If the maximum positive INT value range (32767) of the output parameter value
is exceeded, value
changes to the maximum negative INT value range (-32768) and will continue to be added up.
endlessSteps
on FALSE
is calculated as follows:Version & Date | Change description | |
---|---|---|
01.00.00 | Siemens Industry Online Support | |
19.08.2015 | First released version | |
01.00.01 | Siemens Industry Online Support | |
02.11.2015 | Bug fix | |
01.00.02 | Siemens Industry Online Support | |
02.01.2017 | Upgrade: TIA Portal V14 Update 1 | |
01.00.03 | Siemens Industry Online Support | |
17.08.2018 | Upgrade: TIA V15 Update 2 | |
01.00.04 | Siemens Industry Online Support | |
23.11.2018 | Upgrade: TIA V15.1 | |
01.00.10 | Simatic Systems Support | |
23.09.2019 | Code refactoring, regions and more comments added | |
03.00.01 | Simatic Systems Support | |
15.02.2021 | Insert documentation |