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Setup Relay State
In the menu ‘SETUP Schaltzustände’ it is possible to set or to clear the relays manually
regardless of the switching programs. The display shows the four relays with the
corresponding state. Using NEXT and INC lets the user switch on or off each of the
relays.
With the MENU key the user leaves this menu. The relays return to the state they have
had before entering the setup relay state menu.
Firmware Updates
Whenever the on-board software must be upgraded or modified, the new firmware can
be downloaded to the internal flash memory via the serial port COM0.
If the MENU key is pressed while the system is powered up, a bootstrap-loader is
actived and waits for instructions from the serial port COM0. The new firmware can
be sent to the UA509P from any standard PC with serial interface. A loader program
will be shipped together with the file containing the image of the new firmware.
The contents of the program memory will not be modified until the loader program
has sent the command to erase the flash memory. So if the MENU key is pressed
unintentionally while the system is powered up, the firmware will not be changed
accidentially. After the next power-up, the system will be ready to operate again.
Inquiring Serial Number and Software Revision
The serial number and the revision of the loaded software can be red out by sending
the three characters "
SN!
" via COM0 to the clock that starts sending the following
string:
SN:UA509 9041260 REV:01.00/01
The software revision is updated automatically with every update of the firmware. The
serial number is fixed in an I
2
C bus EEPROM and can not be changed.
Содержание UA509P
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