Chapter 3 PLC System Configuration & Settings 3.1.2.7 Help Tab Help Tab: Provide users of ancillary functions for HWCONFIG. About Click “About” under the Help tab to view the current version, release date and other information of the software. 3-41 Item Description About Click to see information of the version and the release date of this HWCONFIG. Help Click this button to see the user manual. Revision History Click to see the change history of HWCONFIG.