7-1
7 Glossary
Acronym Description
AC Alternating Current
ADC Analog to Digital Converter
Ch. Channel
DAC Digital to Analog Converter
DC Direct Current
DCS Distributed (or Digital) Control System
DPDT Dual Pole Dual Through switch
EMC Electro Magnetic Compatibility
HHC Hand Held Configurator
PLC Programmable Logic Controller
Sink The terminal that receives a current flow
Source The terminal that forces a current flow
SPDT Single Pole Dual Through switch
SPST Single Pole Single Through switch
Supply The device that applies a voltage (supply
voltage) to two terminals
Tx Transmitter
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