Yokogawa DAQWORX - Manual (Page 22)

1-16 IM WX13-01E
1.1 Overview of Functions
Miscellaneous
Relationship between the Logging Start/Stop Conditions and Special Data
The data that the data logging software scans and records contains the special data
listed below. AddTrigger retrieves these types of data.
• +OVER: data exceeding the high limit of the measurement range
• –OVER: data below the low limit of the measurement range
• LACK: data dropout
• OFF: When data cannot be scanned and recorded because the communication with
the recorder was cut off.
If the logging start condition/stop condition is set to Alarm or Level and the trigger
monitoring channel contains special data, AddTrigger behaves as follows:
• Positive overflow and negative overflow are ignored by the trigger monitoring process.
• LACK and OFF are not used by the trigger monitoring process (trigger is not activated
while LACK or OFF is present)
Reconnection Procedure with the Data Logging Software
If communication with the data logging software is cut off or the initial communication
connection fails due to a network failure or other factors, AddTrigger attempts to
reconnect. If an error occurs during communication, attempts to reconnect are made at
the timing of the scan interval.
In the case of failure to connect initially, the attempt to reconnect is made 30 s after the
communication failure. If communication in progress is cut off, the attempt to reconnect
is made at the scan interval. Attempts to reconnect are made continuously until a
connection is established, or until the user cancels the operation.