A Tag Command is an action, or a command, on a tag.
These tag commands are supported:
| Tag Command | Description |
|---|---|
| AcknowledgeAlarms | Acknowledges all alarms associated with a database tag |
| DirectWriteBit | Directly writes a single bit to a data source |
| DirectWriteByte | Directly writes one or more BYTEs to a data source |
| DirectWriteString | Directly writes a string to a data source |
| DirectWriteWord | Directly writes one or more WORDs to a data source |
| DisableAlarms | Disables all alarms associated with a database tag |
| EnableAlarms | Enables all alarms associated with a database tag |
| ForceValue | Applies a force to a Data Point Tag temporarily masking the real value |
| Refresh | Asks a tag to immediately read its value(s) from the data source |
| RemoveForce | Removes a force from a Data Point Tag restoring the actual value |
| ResetStatistics | Resets the statistics counters of a Channel Tag |
| Run | Requests the execution of a calculation or a program |
| SendMessageTo | Sends a message to a user |
| SetClock | Attempts to synchronize the real time clock of a PLC |
| Write | Asks a tag to write predefined values to a data target |
| WriteValue | Writes a new value to a database tag |
| WriteValueQuality | Writes a new value and quality to a database tag |
Tag commands are protected by User Rights. To execute a tag command, the user must be granted the corresponding user right. For example: to execute a control request on a PLC, the user must have the Write user right for the corresponding tag.