Campbell Scientific CR1000KD CR800 and CR850 Measurement and Control Systems - Page 488

Appendix A. CRBasic Programming Instructions SerialInBlock Stores incoming serial data. This function returns the number of bytes received. Syntax SerialInBlock(ComPort, Dest, MaxNumberBytes) SerialInChk Returns the number of characters available in the datalogger serial buffer. Syntax SerialInChk(ComPort) SerialInRecord Reads incoming serial data on a COM port and stores the data in a destination variable. Syntax SerialInRecord(COMPort, Dest, BeginWord, NBytes, EndWord, NBytesReturned, LoadNAN) SerialOpen Sets up a datalogger port for communication with a non‐PakBus device. Syntax SerialOpen(ComPort, BaudRate, Format, TXDelay, BufferSize) SerialOut Transmits a string over a datalogger communication port. Syntax SerialOut(ComPort, OutString, WaitString, NumberTries, TimeOut) SerialOutBlock Send binary data out a communications port. Used to support a transparent serial talk‐through mode. Syntax SerialOutBlock(ComPort, Expression, NumberBytes) A.12 Peer-to-Peer PakBus Communications Read More! See section PakBus Overview (p. 334) for more information. Also see Campbell Scientific PakBus® Networking Guide available at www.campbellsci.com. PakBus® is a proprietary network communications protocol designed to maximize synergies between Campbell Scientific dataloggers and peripherals. It features auto-discovery and self-healing. Following is a list of CRBasic instructions that control PakBus® processes. Each instruction specifies a PakBus® address and a COM port. The PakBus® address is a variable that can be used in CRBasic like any other variable. The COM port sets a default communications port when a route to the remote node is not known. The following COM port arguments are available: • ComRS-232 • ComME 488