3-13 Programming
Memory Tests
Menu Path
MAIN SCREEN
to TEST MENU
to MEMORY TESTS
Purpose
This menu selection provides three functions that allow you to clear programmed val-
ues from the controller. An additional function tests the controller’s watchdog timer.
Screen
Programming
To perform one of the memory test functions, enter the function number using the nu-
meric keys and press SEL.
Function 7000
Clears all setpoints and configuration settings from the controller’s EEPROM. After
clearing the setpoints, the controller will reload the factory default settings listed in the
Appendix.
Function 7001
Clears all configuration settings from the controller’s EEPROM. These include all of
the programming performed through the Setup Menu and Config Menu on the menu
tree, Figure 20. When finished, the controller will reload the factory default settings
listed in the Appendix.
Function 7002
Clears all setpoints from the controller’s EEPROM. These include any on/off setpoints
programmed through SETPOINTS. All other settings will remain intact.
Function 7998
Watchdog Timer Test. The “Watchdog Timer” monitors the operation of the controller’s
microprocessor and shuts the controller down if any internal malfunction is detected. If
the Watchdog Timer fails, the controller may continue to operate. However, any subse-
quent malfunctions or noise-induced irregularities may go undetected, and the control-
ler may begin to operate erratically.
To test the Watchdog Timer, run Function 7998. If the controller’s Watchdog Timer is
working properly, the controller will reset. If Function 7998 does not reset the controller,
the Watchdog Timer has failed. Replace the controller immediately and return the faulty
unit to the factory.
If a controller fails the Watchdog Timer test fails, do not continue to operate the
controller. Although the controller may appear to be functioning normally, any
internal malfunction may cause erratic operation, possibly activating outputs at
the wrong point in the machine cycle. Such erratic operation may damage prod-
ucts and machinery, and injure machinery operators.
MEMORY TESTS
FCN:----<
Enter function here