Y_ReadAlarm
The
Y_ReadAlarm
function block reports controller-specific alarms that are not axis related.Y_ClearAlarms
clears alarms reported by this block.
Parameters
| * | Parameter | Data Type | Description | Default |
|---|---|---|---|---|
| VAR_INPUT | ||||
| B | Enable | BOOL | The function block will continue to execute every scan while Enable is TRUE and there are no errors. | FALSE |
| VAR_OUTPUT | ||||
| B | Valid | BOOL | The Valid output indicates that the function block is operating normally and the outputs of the function block are valid. | |
| B | Busy | BOOL | For function blocks with Execute input, the Busy output is set to TRUE upon the rising edge of the Execute, and set to FALSE when Done, CommandAborted or Error outputs becomes TRUE. In the case of a function block with an Enable input, Busy indicates that the function block is operating, but may not be ready to provide valid outputs. | |
| B | Error | BOOL | The Error output is set to TRUE if an error has occurred during the operation of the function block. The output is cleared when the Execute or Enable input becomes FALSE. | |
| E | ErrorID | UINT | The ErrorID output provides the identifier of the error when there is an active error in the function block execution. The output is cleared when the Execute or Enable input becomes FALSE. | |
| B | AlarmID | UDINT | This output provides the Controller Alarm ID. This output is reset when Enable becomes FALSE. | |
Notes
Refer to the
Controller Alarm ID List
Error Description
See the
Function Block ErrorID List
Example
Y_ReadAlarm
reading a User-posted alarm from the web UI.
The function block returns AlarmID in decimal form (UINT#873316079). This translates to 340DBEEF in Hexadecimal form, which is the error code displayed on the web UI of the controller.