Siemens SIMATIC Manual page 627

Abbreviations Explanations
OS Operator system
P5V Power supply for module logic
PIO Process Image of Outputs
PII Process Image of Inputs
PG Programming device
PS Power supply
Q : Analog output current
I
Q : Analog output voltage
V
RAM Random Access Memory
R : Load impedance
L
S + / - Sensor line (positive / negative)
SF "Group error" LED
SFB System function block
SFC System function
SM Signal module
PLC Programmable logic controller
SSI Synchronous serial interface
TD HMI (Text Display)
U+ Measuring line for voltage input
CMV Common Mode Voltage
Viso Potential difference between M
sign Sign
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
and local ground
ANA
List of abbreviations
H.1 List of abbreviations
627