Experion PKS technical documentation

I had been looking for technical documentation for PKS system but couldn't find any link. On one of the webpage, it asks for user ID and password. I filled in the application to provide me access but in vain. I had worked with Siemens for so many years and all the product information, documentation, technical support is accessible to anyone. Don't know why Honeywell is so conservative about their technical documents. Does any one know how to get access?