: You might be looking for a piece of software or firmware that interacts with Simatic S7 devices, specifically related to CAN bus communications or a utility named "Can Opener".
It is designed for SIMATIC S7-300 and S7-400 series blocks. Simatic S7 Can Opener V1.31 33
If you work with legacy Siemens S7-300 or S7-400 PLCs, you have likely encountered the dreaded "Know-How Protection" on an FB or FC. Sometimes, you need to modify a parameter, but the original author or the system integrator is long gone. : You might be looking for a piece