Response Electronics CL6011B Especificações Página 156

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Original — December 1991
UM4.6:CS6003
Glossary-34
W
Watchdog Timer (WDT)
1. An electronic timer that generates a priority interrupt unless
periodically recycled by a computer or microprocessor. Should the
computer or microprocessor fail, it does not recycle the timer, which
sends out the interrupt signal, which normally shuts down the system.
2. A regulatory controller software timer used with DCP’s operating in
DDC or supervisory modes. If the time interval between receipt of DDC
or supervisory change requests exceeds the WDT timeout time, the DCP
switches to the configured backup mode (Auto or Manual).
WDT Acronym: Watchdog Timer
XYZ
XFR Symbol: Transfer
XMIT Symbol: Transmit
X.25 A CCITT protocol for connecting data terminal equipment to public
packet switched networks.
%IVP Symbol: Percent Implied Valve Position
Wat - %IVP
Glossary
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