PLCSIM software can simulate most of the functions of PLC. Using simulation can quickly familiarize with PLC instructions and software operations without hardware.
S7-1200 PLC using the simulation function has the following requirements:
Hardware requirements:
1. The firmware version of the S7-1200 PLC must be 4.0 or later.
2. Firmware version of S7-1200F series must be 4.12 or later
Software requirements:
S7-PLCSIM V13 SP1 and above
S7-1200 PLCSIM Simulation Range
S7-PLCSIM currently does not support the following process modules:
count
PID control
sport control
If you use the above process module in your project, you may want to make mistakes in the simulation.
The simulation software S7-PLCSIM supports almost all instructions (system functions and system function blocks) of the S7-1200, and supports the use of instructions, the same as the physical PLC. Therefore, the program can run normally on the simulation and it can certainly run on the physical PLC.
S7-PLCSIM supports S7-1200 communication instructions:
PUT and GET
TSEND and TRCV
There is still a difference between simulation communication and physical objects. You can check the PLCSIM manual.
PLCSIM steps
Click on the simulation button in Portal software to start the S7-1200 emulator.
At this point, a condensed view of the emulator dialog will pop up:
Click on the lower right button to switch to the project view:
Click the New button in the upper left corner to create a new simulation project.
Then return to the Borrow programming interface, select the 1200PLC in the project, click the download button, the following download options dialog box will pop up, select the interface as shown in the figure, and click the "Start Search" button, in the compatible device dialog box, Emulator device will be displayed:
Select the device and click Download to download the project to the 1200 emulator.
After the download project is successful, you can click the Start and Stop buttons on the emulator to change the operating mode of the CPU, as shown by the red circle and the green circle in the following figure:
You can see the SIM table in the left project tree of PLCSIM. You can add your own SIM table, and then add variables in the table to monitor and modify the variable values.
Here is an example to illustrate how the simulator's SIM table is used.
Add a few simple variables I0.0, Q0.0, M0.0 and MB1 in SIM Table 1 for testing:
Click on the checkbox in the "Bit" column to change the value of I0.0:
By default, only the input point is allowed to change, and the modification of the Q point or M point is grayed out. Only the value that cannot be changed can be monitored. If you want to change the value of the non-input point, you need to click the "Enable/Disable Non-input Modify" button on the toolbar to start the modification function of the non-input variable.
After starting this function, you can perform assignment operations on the Q points and M-point variables that have just been created:
Simulation software is not complicated to use.
Relative to the physical operation, you do not have to worry about damage to the PLC, toss as much as possible, and ultimately, to rebuild a project and start from scratch.
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