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port number is the serial port.
The following table shows the available port number and the corresponding device name on different operating systems.
| port number |
Windows, Pocket PC |
Palm OS |
VxWorks |
eCos |
UNIX |
| 0 |
COM1 |
1 |
/tyCo/0 |
/dev/ser0 |
/dev/ttyS0 |
| 1 |
COM2 |
2 |
/tyCo/1 |
/dev/ser1 |
/dev/ttyS1 |
| 2 |
COM3 |
3 |
/tyCo/2 |
/dev/ser2 |
/dev/ttyS2 |
| 3 |
COM4 |
4 |
/tyCo/3 |
/dev/ser3 |
/dev/ttyS3 |
| 4 |
COM5 |
5 |
/tyCo/4 |
/dev/ser4 |
/dev/ttyS4 |
| 5 |
COM6 |
6 |
/tyCo/5 |
/dev/ser5 |
/dev/ttyS5 |
| 6 |
COM7 |
7 |
/tyCo/6 |
/dev/ser6 |
/dev/ttyS6 |
| 7 |
COM8 |
8 |
/tyCo/7 |
/dev/ser7 |
/dev/ttyS7 |
| 8 |
COM9 |
9 |
/tyCo/8 |
/dev/ser8 |
/dev/ttyS8 |
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byte count is the number of bytes currently in the serial port buffer.
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error code is the error or warning code. If error code is nonzero, an error occurred. You can wire error code to one of the error handler VIs, which describe the error and give you options on how to proceed when an error occurs.
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