Nematron Pointe Controller - Manual (Page 330)

Appendix B: Flow Chart Command Reference Pointe Controller User Guide
328
The value of Status Tag may be any 16-bit Unsigned tag (%IUW, %MUW,
or %QUW).
To configure the Status Tag parameter, click the button to open a
standard Select Tag dialog.
B.5.7 Serial Get Comm Errors
This command can be selected from the Serial commands list.
When used in a Flow Chart, the Serial Get Comm Errors command simply checks
the specified COM port for communication errors.
Parameters for this command include:
COM Port – Specify which serial communications port to check. For more
information on how the ports are numbered, see page 321.
The value of COM Port may be an Input/Memory/Output tag, a literal
numeric value, or some other logical expression that is evaluated every
time the block is executed.
To configure the COM Port parameter, click the button to open a
standard Build Argument dialog.
Errors Tag – The tag to which the error code, if any, is saved.
The value of Errors Tag may be any 16-bit Unsigned tag (%IUW, %MUW,
or %QUW).
To configure the Errors Tag parameter, click the button to open a
standard Select Tag dialog.
Error Codes
To interpret a serial communication error code, get the value that was saved to
the Status/Errors Tag and check it against the table below: