Abbrevia‐
tion
Term
Meaning
PC
Personal Computer
-
PCI
Peripheral Component Interconnect
High-speed expansion bus
PE
Protective Earth
Protective conductor
PG
Programming device
-
POST
Power On Self Test
-
RAL
Restricted Access Location
Installation of device in operating facilities with restricted ac‐
cess, for example, a locked switchgear cabinet
RAM
Random Access Memory
RAM
ROM
Read-Only Memory
-
RTS
Reliable Transfer Service
Request to send
RxD
Receive Data
Data transfer signal
SDRAM
Synchronous DRAM
-
SELV
Safety Extra Low Voltage
Safety extra low voltage
SRAM
Static Random Access Memory
Static RAM
SVP
Serial No. of the device
-
SW
Software
-
TFT
Thin-Film-Transistor
Type of LCD flat-screen
TxD
Transmit Data
Data transfer signal
UL
Underwriters Laboratories Inc.
US organization for tests and certifications according to own
or binational standards (with CSA / Canada) standards
UMA
Unified Memory Architecture
Video memory
USB
Universal Serial Bus
-
UPS
Uninterruptible power supply
-
VCC
-
Positive supply voltage of integrated circuits
VDE
Verein deutscher Elektrotechniker (Union of
German Electrical Engineers)
-
VGA
Video Graphics Array
Video adapter which meets industrial standard
WD
Watchdog
Program monitoring with error detection and alarming.
List of abbreviations
C.1 Commissioning Manual, Abbreviations
SIMOTION P320-4 E / P320-4 S
214
Commissioning and Hardware Installation Manual, 11/2016