Campbell Scientific CR1000KD CR800 and CR850 Measurement and Control Systems - Page 204
Glossary of Terms
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Section 7. Installation addressing systems that allow multiplexing of several sensors on a single communications port, which makes for more efficient use of resources. 7.8.8.4 Glossary of Terms Asynchronous Indicates the sending and receiving devices are not synchronized using a clock signal. Baud rate The rate at which data are transmitted. Big Endian "Big end first." Placing the most significant integer at the beginning of a numeric word, reading left to right. cr Carriage return Data bits Number of bits used to describe the data, and fit between the start and stop bits. Sensors typically use 7 or 8 data bits. Duplex Can be half or full. Full‐duplex is simultaneous, bidirectional data. lf Line feed Little Endian "Little end first." Placing the most significant integer at the end of a numeric word, reading left to right. LSB Least significant bit (the trailing bit) Marks and Spaces RS‐232 signal levels are inverted logic compared to TTL. The different levels are called marks and spaces. When referenced to signal ground, the valid RS‐232 voltage level for a mark is ‐3 to ‐25, and for a space is 204
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