Campbell CR800 Series, Руководство оператора

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Section 7. Installation
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SerialClose()
• Examples of when to close
o Reopen PPP
o
Finished setting new settings in a Hayes modem
o Finished dialing a modem
•
Returns TRUE or FALSE when set equal to a Boolean variable
SerialFlush()
• Puts the read and write pointers back to the beginning
• Returns TRUE or FALSE when set equal to a Boolean variable
SerialIn()
1
•
Can wait on the string until it comes in
• Timeout is renewed after each character is received
• SerialInRecord() tends to obsolete SerialIn() .
•
Buffer-size margin (one extra one byte)
SerialInBlock()
1
• For binary data (perhaps integers, floats, data with NULL characters).
• Destination can be of any type.
•
Buffer-size margin (one extra one byte).
SerialOutBlock()
1,3
• Binary
• Can run in pipeline mode inside the digital measurement task (along with
SDM instructions) if the COMPort parameter is set to a constant such as
COM1 or COM2 , and the number of bytes is also entered as a constant.
SerialOut()
• Use for ASCII commands and a known response, such as Hayes-modem
commands.
•
If open, returns the number of bytes sent. If not open, returns 0.