Nematron Pointe Controller - Manual (Page 325)

Pointe Controller User Guide Appendix B: Flow Chart Command Reference
323
B.5.2 Serial Enable Port and Serial Disable Port
These commands can be selected from the Serial commands list.
When used in a Flow Chart, the Serial Enable Port and Serial Disable Port
commands open and close the specified COM port, respectively.
Parameters for these commands include:
COM Port – Specify which serial communications port to enable (open) or
disable (close). 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.
Status Tag – The Serial Enable and Serial Disable commands check for a
communication error at the time of command execution. The Status Tag is
the tag to which the error code, if any, is saved. For more information on
interpreting error codes, see “
Serial Get Comm Errors ” on page 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.