Specifications

Chapter 17. Spread Spectrum Communication (For models equipped with a spread spectrum wireless block)
421
17.3 Spread Spectrum Communica-
tions-related Statement
Syntax: OPEN "COM3:" AS [#]filenumber
Description:
This statement opens a spread spectrum communications device file.
A spread spectrum communications device file cannot be opened with an
IrDA interface device file concurrently. If you attempt to open them con-
currently, a run-time error will occur.
A spread spectrum communications device file can be opened with a bar
code device file concurrently.
Syntax error: Refer to Chapter 14, "Statement Reference."
Run-time errors:
OPEN "COM3:" Open a spread spectrum communications device file
Error code Meaning
02h
Syntax error
37h
File already open
3Ah
File number out of the range
45h
File already open (You attempted to open a spread spectrum com-
munications device file and the IrDA interface device file concur-
rently.)
401h
Failed to open a spread spectrum communications device file.
TIP
A spread spectrum communications device uses TCP/IP for reading or writing data,
unlike other communications devices. For details about programming for using TCP/
IP over a spread spectrum communications device, refer to Chapter 18, "TCP/IP."
To close a spread spectrum communications device file, use a CLOSE statement
listed in Chapter 14.