A-1
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
List of Abbreviations
The abbreviations used in this documentation are listed in alphabetical order in the
appendix, along with the corresponding explanations.
Abbreviation Explanation
AC Alternating current
ADC Analog/digital converter
AI Analog input
AO Analog output
CPU Central processing unit
DAC Digital/analog converter
DB Data block
DC Direct current
EMC Electromagnetic compatibility
EPROM Erasable programmable read-only memory
KLV Keep last value
L+ Terminal for 24 V DC supply voltage
M Ground terminal
M+ Measuring lead (positive)
M– Measuring lead (negative)
M
ANA
Reference potential of the analog measuring cir-
cuit
OB Organization block
OCV Output have no current or voltage
SF Group error LED
SFB System function block
SFC System function
SM Signal module
U
CM
Common mode voltage
A
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