Bently Nevada 3300/01 Series, Operation Manual, Page: 54 / 78

System Monitor •
B ITO
CHECKSUM ERROR
B 1 Ts
NOT U S E D
B I T !
RAM ERROR
B I T;
NOT U S E D
B T 2
MUX U N S TA B L E
B ! T I O
NOT U S E D
B ! T 3
STORAGE OVERFLOW
B1711
NOT U S E D
B I T 4
SCANNER OVERFLOW
B I T 2
NOT U S E D
B I T5
I / O P O R T ERROR
B I T 1 3
NOT U S E D
0 116
SPI E R R O R
B 1 T 4
NOT U S E D
I B 11 7
NOT U S E D
B 1 T 5
NOT U S E D
80175-01
16 I PROTOCOL SPECIFICATIONS
DIAGNOSTIC REGISTER
The diagnostic register is a status word that is maintained by the Serial Interface and is returned
in response to a function code 8, diagnostic code 2 command. Failure of self tests will cause bits
to be set in the diagnostic register. The diagnostic register is reset on power-up or after receiving
a function code 8 diagnostic code 10 command.
The structure of the diagnostic register is as follows:
Refer to section 17, Self Test, for an explanation of the error bits 0, 1, 5, and 6.
MUX UNSTABLE
STORAGE OVERFLOW
SCANNER OVERFLOW
This error bit is set if while scanning the 3300 backplane, the
multiplexer control lines change state during the static data
settling time. Setting of this bit generally indicates noise has
interfered with the data scanning process.
If there is an attempt to store data internally at an illegal data
address, this bit is set. Setting of this bit indicates an internal
firmware failure.
If the 3300 backplane multiplexer value changes state before
a previous scan is completed, this error bit is set. Setting of
this bit indicates noise has interfered with the data scanning
process.
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