Control VQT
Associated with: Advanced OPC Groups (This action is only available with OPC DA 3.0)
Security permission required to access this pick action: Control
The Control VQT action allows you to write to the point's item in the current server. You need to enable the control settings for a point to display this action . Select the Control VQT pick action to write to the selected point, the following dialog is displayed:
For each point type you can include one or more of the following:
- Value—This allows you to enter a value to write to the item. The type of value varies according to the type of point, (an analog point is illustrated above).
- Quality—This allows you to indicate the ‘quality’ or reliability of the item’s data, see Quality Classifications.
- Timestamp—This allows you to select the timestamp to write to the item.
To write a Value, Quality and/or Timestamp to the item, select one or more of the check boxes. Clear the check boxes to exclude any one of the three.
NOTE: Not all OPC DA servers support every combination of Value, Quality and Timestamp.