Campbell CR800 Series - Page 285

Section 7. Installation
285
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 record + 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 record + 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.