Open the connector communications device file, ready for file transfers and other communications via the dedicated interface cable.
BHT-BASIC treats communications devices as files. File and packet transfers therefore require first opening the communications device file.
speed specifies the transfer speed in bps. (See the table below.) If this parameter is omitted, the BHT uses the last setting, which defaults to 9600 bps.
fileno can be any number from 1 to 16 not currently in use by another file (data or bar code device). Use the same number to send data packets to and close the communications device file.
Note that always close IrDA, Wireless LAN, and other communications device files before opening this device. It cannot be used simultaneously with other such devices.
Close the communications device when it is no longer needed.→Closing a communications device file
Open connector communications device at 115200 bps
open "COM2:115200" as #1
Open connector communications device at 9600 bps
open "COM2:9600" as #1