viii UDC3300 Limit Controller Product Manual 1/01
Acronyms
DMCS ................................................................. Distributed Manufacturing Control System
EMI ..........................................................................................Electromagnetic interference
HID...................................................................................................High intensity discharge
IEEE............................................................Institute of Electrical and Electronics Engineers
MOVs.................................................................................................. Metal Oxide Varistors
NC................................................................................................................ Normally closed
NO ..................................................................................................................Normally open
RC....................................................................................................Resistance-capacitance
RFI...........................................................................................Radio frequency interference
RH..............................................................................................................Relative Humidity
RS422...........................................................................................Communications Protocol
RTD ................................................................................. Resistance Thermometer Device
SCRs ...........................................................................................Silicon controlled rectifiers
UDC............................................................................................ Universal Digital Controller
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