Edition - Siemens SIMATIC HMI OP3 Equipment Manual

Test and Monitoring Functions
CPU TEST
The internal registers, timers and the interrupt controller of the processor are
tested.
RAM TEST
The entire static RAM is "read" tested and then "write" tested, its previous
contents being overwritten as a result.
EPROM TEST The checksums of the memories are determined.
FLASH TEST
In the FLASH TEST, the size and status of the FLASH memory are displayed
– for example, 128 k, "empty" or "prg." for programmed).
RS232-TEST
In the RS232 interface test, data are transferred by the sender to the recipient
of the interface through a shorting plug.
Note
For this test, connect pins 3 and 4 to the 9-pin subminiature D connector of
the transfer cable (refer to chapter 15).
KEYBOARD TEST When you press a key on the system keyboard, the name of the key – for
example, ENTER – is displayed; the key number is displayed in the case of
numeric keys.
End of test:
If a key is not pressed for 5 seconds, the test is aborted and you return to the
menu.
DISPLAY TEST The following test screens are displayed in succession:
1. Display dark
2. Display light
3. Cursor runs from left to right on both lines of the display and back again.
TEST_ALL All menu items of the hardware test are performed in succession. In the event
of a fault, the test program remains at a standstill for about 20 seconds. It
then performs the remaining tests and afterwards goes to the menu item in
which the first fault occurred.
Note
For this test, connect pins 3 and 4 to the 9-pin subminiature D connector of
the serial transfer cable (refer to chapter 15).
END OF TEST A hardware reset is initiated and a cold start performed.
16-2
Operator Panel OP3

Edition 11/99