S7-SoftPLC:CPU Parameters
In this window the basic settings of S7-SoftPLC are performed.
Load PLC-program at startup
The currently saved PLC-program, stored in "S7.BIN" in the S7-SoftPLC installation folder, is loaded into S7-SoftPLC, as soon as it is started. The display of the jitter is reset.
If the option "Load PLC program at startup" is selected, the PLC-program saved in the file "S7.BIN" is loaded into S7-SoftPLC when S7-SoftPLC is started. The starting conforms to the start-up of a hardware-PLC after a voltage-return. Therefor the organisation block OB 101 is processed first. After that the cyclic program-processing starts with OB 1. The signal states of flags(M), timers(T) and counters(C) are restored into S7-SoftPLC, if this is set in the hardware configuration.
If any problems should occur at the next start, delete the file "S7.BIN" in the installation directory of S7-SoftPLC. Such problems may occur, if the saving process has been disturbed. In such case the PLC-program has to be downloaded again with the programming unit. In such case the flags(M), timers(T) and counters(C) are in their initial state.
Save PLC programm at shutdown
The PLC-programm located in S7-SoftPLC is saved into the file "S7.BIN" in the S7-SoftPLC installation folder, as soon as S7-SoftPLC is terminated. The signal states of flags(M), timers(T) and counters(C) are saved as well.
Retain M/T/C (Select the areas with the S7-Hardware-Configurator)
The memory is kept remanent for M,T,C. (starting at byte 0 up to the value set with the hardware configuration)
Permit saving in RUN
Permits saving without stopping the PLC.
WARNING: IF THE PROGRAM IS SAVED DURING A RUNNING OPERATION, THE CYCLE TIME CAN INCREASE.
Single processor mode (also Hyperthreading CPUs)
Sets the single processor mode fixed. With real double or dual-core processors the PLC has got 25% of the possible computing time. This option should be activated with Hyperthreading processors, otherwise the processor capacity and the cycle time may vary.
Order number
Permits to select the order number of the emulated PLC. Older CPUs can be chosen to stay compatible with existing projects. Alternatively Profibus and Profinet types can be set, if the hardware configuration will be made with STEP®7. There are also types available, which are suitable with TIA.
Key switch position
| RUN | In this mode S7-SoftPLC processes the PLC-program. |
| RUN-P | In this mode S7-SoftPLC processes the PLC-program. The PLC-program can be modified during operation. |
Operating system
Selection of used operating system. Everything newer uses the XP option.
Language
Selection of user interface language.
MPI via serial interface
The connection to S7-SoftPLC can be established via the selected port.
PLC memory size
The size of the SoftPLC S7-416 load memory. The size of the SoftPLC S7-315 load memory is limited to 256 kbyte.
PLC : Windows processor time (ms)
Partitioning of the PC-CPU processing time between S7-SoftPLC and Windows®.
Default
Restores the default settings.
