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LOGO! PLC driver based on LabVIEW


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LOGO! PLC driver based on LabVIEW

I'm happy because these past 2 weeks I have been working to decode and interpret the communication between the LOGO! PLC and a PC. Well ... I finished this work and achieved the following:

- Ask the status of communication between PC – LOGO! PLC

- Ask the status of the PLC (The PLC responds RUN/STOP status)

- Forcing the status of the PLC to RUN mode.

- Forcing the status of the PLC to STOP mode.

- Ask the current values (in real-time) of all channels of the PLC:

o 24 digital inputs

o 16 digital outputs

o 8 analog inputs

o 2 analog outputs

o 24 digital marks

o 6 analog marks

o 4 cursors

The application developed in LabVIEW performs the main function of communicate the Desktop / Laptop with PLC LOGO! (That is to say link National Instruments with Siemens ... ja ja). The software performs the following functions:

- Monitors and displays all channels of the LOGO!

- Choose the communication port.

- The user can save in a file all the data, each configurable period.

I have made many tests with different logic modules, and it has not given any problems.

In the image attached, I show you some of the topologies that can be implemented knowing this protocol of communication. I ask you to spread this to engineers/technicians who design and implement these MICRO-AUTOMATION systems, in order to offer this Software applicable to supervisory system or data-logger device.

I'm ready to be able to help.

post-8339-1237904029.png?width=400

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