S7Stat S7 Cpu Operating State - Siemens FM 458-1 DP Manual

2.3.5 S7STAT S7 CPU operating state

Symbol
Brief description
Mode of operation
Output value
to ACT or OLD
0x0010
0x0020
0x0040
0x0080
0x0100
0x0200
0x0400
NOTE
I/O
RUN S7-CPU in RUN
STP S7-CPU in STOP
HLD S7-CPU in HOLD
ACT Actual operating state of the S7-CPU
OLD Previous operating state of the S7-CPU
Function Blocks - FM 458-1 DP
Edition 12.2004
S7STAT
The actual and previous S7-CPU operating states are displayed at the
outputs.
The actual and previous operating state of the S7-CPU is determined and
displayed at connectors ACT for the actual and OLD for the previous
operating state. Output RUN is set to TRUE if the S7-CPU is either in the
RUN or RUN-R state.
Operating state
Stop
Cold start
New start
Re-start
RUN
RUN-R
Hold
All other values are used for extended diagnostics.
Please refer to the help for STEP7 for a more detailed description of the
operating states.
RUN BO ― S7-CPU in RUN
STP BO ― S7-CPU in STOP
HLD BO ― S7-CPU in HOLD
ACT W ― actual operating state
OLD W ― previous operating state
RUN
0
0
0
0
1
1
0
Communication blocks
STP HLD
1 0
0 0
0 0
0 0
0 0
0 0
0 1
(Default: 0)
(Default: 0)
(Default: 0)
(Default: 0x8000)
(Default: 0x8000)
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