18 command 1027: ‘manual’ handshake mode, 19 command 2049: set communications parameters, First command option (parameter 5) – Campbell Scientific SDM-SIO4 4-Channel Serial I/O Interface User Manual
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Section 5. Programming the Datalogger
5-11
Parity reset:
0
Do nothing
1
Reset parity error count to zero
5.2.18 Command 1027: ‘Manual’ Handshake Mode
In this mode, the datalogger can set DTR, RTS and XON/XOFF as required.
Not used - set to zero.
| XON/XOFF
| | RTS
| | | DTR
| | | |
x x x x
XON/XOFF:
0
Leave as set previously
1
XOFF data (stop data transmission from SDM-SIO4)
2
XON data (restart data transmission from SDM-SIO4)
RTS:
0
Leave as set previously
1
Clear RTS to low
2
Set RTS to high
DTR:
0
Leave as set previously
1
Clear DTR to low
2
Set DTR to high
Values per repetition = 0
A 2ms delay is required after this command before the next
SDM-SIO4 command is started.
5.2.19 Command 2049: Set Communications Parameters
This command sets the baud rate, data length, stop bits, parity and handshake
mode as follows (please refer to Appendix B for a more detailed explanation):
Values per repetition = 0
First Command Option (Parameter 5)
Handshake mode
| Stop bits + parity
| | Data length
| | | Baud rate
| | | |
x x x x
NOTE