GetControlword()
This method is used to read the control word of an I/O output element.
Syntax:
METHOD GetControlword : HRESULT
VAR_INPUT
nDriveControlWord: REFERENCE TO UINT;
END_VAR
Return value
Name | Type | Description |
|---|---|---|
GetControlword | HRESULT | Return value with feedback on the success of the execution. |
The return value of the method is of type HRESULT. The following return values are to be expected.
E_AdsErr | Return value | Cause |
|---|---|---|
DEVICE_ERROR | 0x9B00 0700 | The I/O element is in error state. |
DEVICE_SYMBOLNOTFOUND | 0x9B00 0710 | The transferred reference is invalid. |
DEVICE_INCOMPATIBLE | 0x9B00 070E | The variable type of the transferred structure does not match the I/O element. |
DEVICE_SRVNOTSUPP | 0x1B00 0701 | Function is not supported by the I/O element. |
DEVICE_NOERR | 0x1B00 000 | Execution was successful. |
Inputs
Name | Type | Description |
|---|---|---|
nDriveControlWord | REFERENCE TO UINT | Reference to a variable to which the channel state is to be written. |
Requirements
Development environment | Target platform | PLC libraries to include |
|---|---|---|
TwinCAT v3.1.4024.35 | PC or CX (x64, x86) | Tc3_PlasticFunctions v3.12.4.26 or higher |