Campbell Scientific CR850 CR800 and CR850 Measurement and Control Systems - Page 445
PC200W, PC400, RTDAQ, LoggerNet, Datalogger Support Software, Software, Asynchronous, scan time,
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Section 11. Glossary string A datum consisting of alphanumeric characters. support software Includes PC200W, PC400, RTDAQ, LoggerNet, and LoggerNet clients. Brief descriptions are found in Datalogger Support Software (p. 76). A complete listing of datalogger support software available from Campbell Scientific can be found in the appendix Software (p. 546). Software manuals can be found at www.campbellsci.com. synchronous The transmission of data between a transmitting and a receiving device occurs as a series of zeros and ones. For the data to be "read" correctly, the receiving device must begin reading at the proper point in the series. In synchronous communication, this coordination is accomplished by synchronizing the transmitting and receiving devices to a common clock signal (see Asynchronous (p. 425) ). system time When time functions are run outside the Scan() / NextScan construct, the time registered by the instruction will be based on the system clock, which has a 10‐ms resolution. See scan time (p. 442). task 1) Grouping of CRBasic program instructions by the CR800. Tasks include measurement, SDM, and processing. Tasks are prioritized by a CR800 operating in pipeline mode. 2) A user‐customized function defined through LoggerNet Task Master. TCP/IP Transmission Control Protocol / Internet Protocol. Telnet A software utility that attempts to contact and interrogate another specific device in a network. constant A terminal is the point at which a single wire connects to a wiring panel or connector. Terminals are usually secured with small screw‐ or spring‐ loaded clamps. See connector (p. 427). 445
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