BlueLine Tools is an engineering software application allowing the user to interact with the BlueLine control system platform, operating in a true Windows environment. The work space is divided into functional panes, and depending on specific user action, windows with additional functionalities open up. The major features are summarized as follows:

• Project engineering database
• Hardware configuration
• Application software development and management
• Controller communications and downloading
• Configuration of data busses and redundancy levels
• Debugging tool
• Generation of documentation
• Importing of and converting from older style control systems
• Physical configuration tool for all BlueLine hardware modules
• Extensive help displays at all levels of engineering

The project engineering database is a non-ASCII based relational database that manages signal tags, addresses, signal routing across data busses, and all signals internal to all processors. Unlike other programs, the database continuously ensures that any and all user entries are permitted in the context of the current project. For instance, adding a signal requires that that same signal does not already exist; selecting a bus address for a discrete input requires that address to be already allocated to a binary input module, and the bit chosen has to actually be available. Bad choices are not even availble for selection in most cases.