Siemens SIMATIC - Page 627

List of abbreviations
H.1 List of abbreviations
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
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
I
:
Analog output current
Q
V
:
Analog output voltage
RAM
Random Access Memory
R
L
:
Load impedance
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
ANA
and local ground
sign
Sign