S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD
STL
(not S7-1200)
SCL
Reading identification and maintenance data
Read out name of a module
Read information of an IO device
Read out information about the memory card
Read out status of the CPU clock
Is time synchronization via NTP server enabled?
Time synchronization missed?
Is automatic adjustment for daylight saving time
enabled?
Read module status information in an
IO system
Read module status information of a module
Generate diagnostics information
Read diagnostics information