GetPosition / SetPosition / RNtfPosition
GetPosition
The GetPosition method is used to query the Position, PositionMAX, and PositionMIN properties of the OCA object. If the query was successful, the result is output in the properties stPosition, stPositionMAX and stPositionMIN.
 | Cyclic method call Since several PLC cycles may pass between sending and the response from the device, this method should be executed cyclically. |
Syntax
VAR_INPUT
pLink : POINTER TO ST_Link; //Pointer to address of the structure which links the OCA objects to the OCA device
bExecute : BOOL; //The Method is triggered by a rising edge at this input.
END_VAR
Inputs
Name | Type | Description |
|---|---|---|
pLink | POINTER TO ST_Link | Pointer for establishing a connection between OCA objects and the OCA device |
bExecute | BOOL | The method is executed with a positive edge at the bExecute input. |
SetPosition
The SetPosition method can be used to set the switch position of an OCA object. If the method was executed successfully, the result is output in the property stPosition.
| Cyclic method call Since several PLC cycles may pass between sending and the response from the device, this method should be executed cyclically. |
Syntax
VAR_INPUT
pLink : POINTER TO ST_Link; //Pointer to address of the structure which links the OCA objects to the OCA device
bExecute : BOOL; //The Method is triggered by a rising edge at this input.
nPosition : UINT;
eCmdMode : E_OcaMessageTypeCmdbLock;
END_VAR
Inputs
Name | Type | Description |
|---|---|---|
pLink | POINTER TO ST_Link | Pointer for establishing a connection between OCA objects and the OCA device. |
bExecute | BOOL | The method is executed with a positive edge at the bExecute input. |
nPosition | UINT | Switch position for the OCA object. |
eCmdMode | E_OcaMessageTypeCmdbLock | Depending on whether confirmation is required or not, this input variable is set to E_OcaMessageTypeCmd.OcaCmdRrq or |
RNtfPosition
If the OCA object was prompted to notify changes (using the Subscription method), incoming notifications are read using the RNtfPosition method.
| Cyclic method call Since several PLC cycles may pass between sending and the response from the device, this method should be executed cyclically. |
Syntax
VAR_INPUT
pLink : POINTER TO ST_Link;
bEnable : BOOL;
nSubscribtionNo : UDINT;
END_VAR
Inputs
Name | Type | Description |
|---|---|---|
pLink | POINTER TO ST_Link | Pointer for establishing a connection between OCA objects and the OCA device. |
bExecute | BOOL | The method is executed with a positive edge at the bExecute input. |
nSubscribtionNo | UDINT | Unique number for localizing the respective subscription. |