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ALPHA-VISION® content: CPU-Properties |
CPU-Properties
SUMMARY
This document gives a overview to the SoftPLC7 CPU-Properties.CONTENTS
General
Generally the configuration for any STEP7 program is done via the configuration file
'SoftPLC.ini' .
The most important properties can be looked at and modified via the item 'CPU properties' in the
pull-down menu 'Extras' of the SoftPLC7 Start Window.
- Order No.: Corresponds to MLFB (machine-readable product designation) - default = SOFTPLC7
- Project Directory: Location of the STEP7 program to be simulated
- Configuration INI-File: Location of the configuration file SoftPLC.ini
Cycle/Clock Memory
Cycle
- The tick-box 'Update OB1 process image cyclically' defines whether in-between the OB1-cycles the process image 0 should be updated.
- Minimum Scan Cycle Time defines the milliseconds to elapse before OB1 cycle starts again.
- Phase offset defines the time offset in milliseconds the OB1 is started at. If set, it is rounded to a multiple of a time slice.
Clock Memory
- If ticked, 'Memory byte' defines a Memory byte, in which any single bit is toggled after a different time interval.
Retentive Memory
- Depending on their start duty retentive resources keep their content when changing over from STOP to RUN. The number of memory bytes, S7-Timers and S7-Counters may be defined here.
Timealarm
- For the Timealarms OB10 to OB17 the priority class, activation, execution period, start date, start time, and the Phasis offset can be defined here.
- PI partition '0' indicates that no process image is associated with that OB.
Delayalarm
- For the Delayalarms OB20 to OB23 the priority class and the Phasis offset can be defined here.
- PI partition '0' indicates that no process image is associated with that OB.
- They are started using SFC 32 (SRT_DINT)
Cyclic Interrupt
- For the Cyclic Interrupts OB30 to OB38 the priority class, execution time, process image and the Phasis offset can be defined here.
- PI partition '0' indicates that no process image is associated with that OB.