Added code generator, FAISS db of OSCAT PDF, OpenPLC projects.

CodeGen.py

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+from langchain.vectorstores import FAISS
+from langchain.embeddings.openai import OpenAIEmbeddings
+from langchain.chat_models import ChatOpenAI
+from langchain.callbacks.streaming_stdout import StreamingStdOutCallbackHandler
+from langchain.chains import RetrievalQA
+
+my_openai_api_key = "" # Insert your OpenAI API key here
+
+llm = ChatOpenAI( # Instantiate your favorite language model here
+    openai_api_key=my_openai_api_key,
+    model_name="gpt-4",
+    callbacks=[StreamingStdOutCallbackHandler()],
+    streaming=True,
+    verbose=True, 
+    temperature=0
+  )
+
+embeddings = OpenAIEmbeddings(openai_api_key=my_openai_api_key)
+vectorstore = FAISS.load_local("faiss_index_oscat", embeddings)
+
+qa = RetrievalQA.from_chain_type(
+    llm=llm, 
+    chain_type="stuff", 
+    retriever = vectorstore.as_retriever(search_kwargs={'k': 6}),
+    verbose=True, 
+    return_source_documents=True
+    )
+
+# Modify the prompt below to your liking
+prompt = """Write a self-contained IEC 61131-3 ST function block:
+
+Create a PID controller with dynamic anti-wind up and manual control input for temperature control in an ammonium nitrates reactor.
+Set point = 180.0, Kp = 50.0, Ki = 1.2, Kd = 10.0, limits between -100 and +100. 
+Add a timer to only set the PID controller to automatic mode after 10 seconds.
+
+Use pre-specified function blocks. 
+Assign each used function module to a local variable, do not call it directly.
+Do not include comments in the code. Do not use // or (* *).
+Do not write code for the inner body of instantiated function blocks.
+Use upper-case letters and underscores for function block names.
+Use lower-case and upper-case letters for variable names.
+Do not provide explanations, only the source code.
+
+The generated ST Code must follow this format:
+
+FUNCTION_BLOCK <name of the function block>
+VAR_INPUT (** here define input variables **) END_VAR
+VAR_OUTPUT (** here define output variables **) END_VAR
+VAR (** here define internal temp variables **) END_VAR
+(** here write ST code of this function block**) 
+END_FUNCTION_BLOCK
+"""
+
+print("Prompt:\n", prompt)
+print("-----------------------------------------------------------------------\n")
+print("Answer:")
+
+result = qa({"query": prompt})
+
+print("The following", len(result["source_documents"]), "pages were used from the source document:\n")
+pagenum = 0
+for document in result["source_documents"]:
+    print("-----------------------------------------------------------------------\n")
+    pagenum += 1
+    print("Page number:", pagenum)
+    print("Page content:\n")
+    print(document.page_content, "\n")
+    print(document.metadata, "\n\n")

OpenPLC/PidControl/beremiz.xml

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+<?xml version='1.0' encoding='utf-8'?>
+<BeremizRoot xmlns:xsd="http://www.w3.org/2001/XMLSchema" URI_location="LOCAL://">
+  <TargetType/>
+</BeremizRoot>