GTWIN Reference Manual 3.7 FP Monitor673.7.3.1 System Register Monitor ScreenOption DescriptionNo.Displays the number of the system register. To enter a number, touch the number fieldand enter a number with the keyboard. Alternatively, use the [Up]/[Down] buttons toselect a number (not available for GT703/GT704).ValueDisplays the value of the system register selected. To enter a value, touch the valuefield, and wait for the keyboard to display. Values can be displayed in binary, decimal,or hexadecimal format. Use the BIN/DEC/HEX buttons to change the display format.The currently selected display format is highlighted.When a password has been set on the PLC, the password input screen is displayed. Theappearance of the password input screen depends on whether the password has 4 or 8 digits(see p. 73).3.7.3.2 Error Monitor ScreenPLCs from the FP series are equipped with a self-diagnostic function which monitors theoperation of the PLC. Use this screen to view self-diagnostic errors.This is what the error monitor screen looks like when an error has occurred. In this example,the error code is 45, and the following error flags have been set: R9000 (self-diagnostic errorflag), R9007 (operation error, hold), and R9008 (operation error, non-hold).Option DescriptionSelf-Diagnostic Displays "No error" during normal operation and "Error" (flashing) when an error hasoccurred.Error Code Displays the error code. Please refer to the PLC manual for details.Clear Error Use this button to clear errors with error code 43 and higher.