BT 200 04/00 English
(S)J31069-D0075-U001-A2-6318 Page 25
7.3 Self-Tests
The BT 200 performs self-tests automatically
and on request (hardware test).
- Internal RS 485 driver test
The test is performed each time the stati-
on and branch test is called.
- RAM test
A cyclic RAM test is performed.
- Flash EPROM test
A cyclic EPROM test is performed.
- RS 485 driver test
The individual tests (e.g., RAM test, flash
EPROM test and display key test) can also be
selected in specialist mode via service menu -
HW test.
If an error is detected during the self-test, you
must proceed as shown in the error correc-
tion table.
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