Technical data

Table Of Contents
Organization Blocks
System Software for S7-300/400 System and Standard Functions - Volume 1/2
A5E00709327-01
1-59
Bit No. Meaning Possible Binary
Values
Explanation
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 not
battery-backed POWER ON (with
memory reset by system)
0010 0001 Cold restart after not battery-backed
POWER ON (with memory reset by
system)
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
1010 0000 Automatic hot restart after battery-
backed POWER ON according to
parameter assignment (S7-400 only)
0000 Automatic startup illegal, memory reset
requested
0001 Automatic startup illegal, parameter
modifications, etc. necessary
0111 Automatic restart (warm) permitted
15 - 12 Permissibility of
automatic startup
1111 Automatic restart (warm/hot) permitted
(S7-400 only)
0000 Startup illegal, memory reset
requested
0001 Startup illegal, parameter
modifications, etc. necessary
0111 Restart (warm) permitted
11 - 8 Permissibility of manual
startup
1111 Restart (warm/hot) permitted (S7-400
only)