This command clears the RS232 input buffer and the variable named MySVar "RS0_n" for COM port n.
Syntax
FL0 port_number
The port_number must be from 0 to 12.
Return value
This command does not return a value.
Notes
In most cases, this command actually closes the COM port. This allows you to run one template with RS232 entry and then close the COM port (FL0), leave this first template open on the workstation, and then run a second RS232-entry template on the same workstation.
In a client session under Citrix or Terminal Services, this command does not close the COM port. It simply clears all characters from the COM port by reading them.
Note: Although this command has been updated to work better with Terminal Services, it is still not recommended as it may cause the system to become unstable. |
Note: If a data entry operator presses CTRL+K during data entry to bypass the RS-232 device and enter data values via keyboard, the data entry session will replace any RS232 input mode cells with Keyboard input mode cells. However, the data entry session will still try to execute all commands in the template – including the FL0 command – and the operator may not be able to complete data entry without access to the RS-232 device. |
Examples
FL0 0
This command clears the RS232 input buffer for COM port 0, and it resets MySVar "RS0_0" to an empty string.