slow sequence
A usually slower secondary scan in the CRBasic program. The main scan has priority over a
slow sequence.
SMS
Short message service. A text messaging service for web and mobile device systems.
SMTP
Simple Mail Transfer Protocol. A TCP/IP application protocol.
SNP
Snapshot file.
SP
Space.
SPI
Serial Peripheral Interface - a clocked synchronous interface, used for short distance
communications, generally between embedded devices.
start bit
The bit used to indicate the beginning of data.
state
Whether a device is on or off.
Station Status command
A command available in most data logger support software.
stop bit
The end of the data bits. The stop bit can be 1, 1.5, or 2.
Appendix C. Glossary289