Timing Error (Bit 1); Syntax Error (Bit 2); Slope Error (Bit 3) - HP 8112A Operating, Programming And Servicing Manual

50 mhz programmable pulse generator
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LIMIT-HILC
Timing Error
There are two types of error (shown for NORM mode only) which set
the timing error bit in the status byte. The conditions which cause
(Bit 1)
them and the description used by the HP 8112A when replying to an
therefore a transient error is only recorded by generating an SRQ.
Note
I
More than one error condition can occur at one time. When using
the IERR command ensure that you allow for a reply containing
more than one error description.
DELAY ERROR
WIDTH ERROR
Syntax Error
This error occurs when the HP 8112A cannot understand a
programming message. e.g DDY 50% instead of DTY 50%, The bit
is latched until cleared by reading the status byte.
Slope Error
This error is caused by excessive slope. The conditions which caused
it and the description used by the HP 8112A .when replying to an
(Bit 3)
therefore a transient error is only recorded by generating an SRQ.
Note
More than one error condition can occur at one time. When using
the IERR command ensure that you allow for a reply containing
more than one error description.
EXCESSIVE
a. the programmed High-level is greater
than the limited High-level
b. the programmed Low-level is lower than
the limited Low-level
This error appears only when the limit is on
and:
a. High-level control has been selected
b. no High-level limit is possible as HILC is
an external control voltage
Comments
Delay value is greater than Period value.
n
i.e. PER 1 ms, DEL 1.1 ms
invalid
settings.
The ERROR LED is on
n
Width value is greater than Period value.
n
i.e. PER 1 ms, WID 1.1 ms
The front panel LE:Ds flash to indicate the
n
invalid
settings.
The ERROR LED is on
n
Comments
SLOPE
Programming 6-15

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