v 2.0 — March 2023 Altanium Delta5
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mA Milliampere (or milliamp)
MCU Master Control Unit
mm Millimeter(s)
NAK Negative Acknowledge
NTP Network Time Protocol
Ohm or ohms
OPC UA Open Platform Communication Unified Architecture
PCM Priority Control Mode
PDF Portable Document Format (file)
PID Proportional, Integral, and Derivative
PNG or png Portable Network Graphics (raster-graphics file)
RH Relative Humidity
RMS
Root Mean Square (voltage)
SI International System of Units (measurement)
Single Phase
(Input Power)
A two-wire (supply and neutral) power input is used.
SPI Society of Plastics Industry
SSID Service Set Identifier
T/C Thermocouple
TXT Text (file)
UTC Coordinated Universal Time
VAC Volts Alternating Current
VDC Volts Direct Current
VGA Video Graphics Array
VNC Virtual Network Computing
Wye 3PH+N
(Input Power)
A Wye three phase supply plus neutral configuration is when all the loads in an AC
system are connected at one point. The configuration has looks like a Y shape.
Table A-1 Glossary of Terms and Symbols (Continued)
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