Technical data

Table Of Contents
Organization Blocks
System Software for S7-300/400 System and Standard Functions - Volume 1/2
1-60
A5E00709327-01
Bit No. Meaning Possible Binary
Values
Explanation
0000 0000 No startup
0000 0001 Warm restart in multicomputing without
changing setting on the CPU according
to parameter assignment (S7-400 only)
0000 0011 Restart (warm) triggered by mode
selector
0000 0100 Restart (warm) triggered by command
via MPI
0000 0101 Hot restart in multicomputing without
changing setting on the CPU according
to parameter assignment (S7-400 only)
0000 0111 Cold restart triggered with mode
selector
0000 1000 Cold restart triggered by command via
MPI
0000 1010 Hot restart in multicomputing without
changing setting on the CPU according
to parameter assignment (S7-400 only)
0000 1011 Hot restart triggered with mode
selector (S7-400 only)
0000 1100 Hot restart triggered by command via
MPI (S7-400 only)
0001 0000 Automatic Restart (warm) after battery-
backed POWER ON
0001 0001 Cold restart after battery-backed
POWER ON according to parameter
assignment
0001 0011 Restart (warm) triggered with mode
selector; last POWER ON battery-
backed
0001 0100 Restart (warm) triggered by command
via MPI; last POWER ON battery-
backed
0010 0000 Automatic Restart (warm) after battery-
backed POWER ON (with memory
reset by system)
0010 0001 Cold restart after battery-backed
POWER ON according to parameter
assignment
0010 0011 Restart (warm) triggered with mode
selector; last POWER ON not battery-
backed
0010 0100 Restart (warm) triggered by command
via MPI; last POWER ON not battery-
backed
7 - 0 Last valid intervention or
setting of the automatic
startup at POWER ON
1010 0000 Automatic hot restart after battery-
backed POWER ON according to
parameter assignment (S7-400 only)