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4.2. OPERATION WITH DIGITAL RECORDERS
4.2.1 Digital Input/Output Procedure
Front Panel Test Set-ups and dynamic parameter data (generator frequency, generator
level and meter level) can also be output to a printing or storage device via the inter-
face. Similarly, externally stored set-ups and data can be input to set the front panel.
The interface codes are listed in section 5.4.
Data transfer over the IEEE interface can be controlled using one of the following two
methods:
a)
Via an external controller connected to the Interface Bus (refer to chapter 5 for
further details).
b)
By manually using the Digital Interface "Input" and "Output" keys (refer to section
3.4.1 for further details).
There are two types of parameters that can be read out: dynamic parameters and static
parameters. Dynamic parameters are parameters that change their value during opera-
tion i.e. generator frequency, generator level (compressor controlled) and meter level. A
set of dynamic parameters consists of a list of these parameters separated by semi-
colons.
The elapsed number of sweeps is read out together with the required number of sweeps
and as such is treated as a static parameter. But during continuous read-out of dynamic
parameters, it is included in the first set of data and in each set succeeding an increase
of the elapsed number of sweeps (i.e. at the beginning of a new sweep).
Operational procedures for using the 1 050 with Digital Cassette Recorder Type 7 400 and
Graphics Recorder Type 2313 are given in sections 4.3 and 4.4 respectively.
4.2.2. Output of Front Panel Test Set-ups and Dynamic Data
Before initiating a digital read-out, it is important to ensure that the listener is set to
Listen Only mode before a read-out of data is initiated. If it is not, the 1050 will display
"Error
3". There are five ways of initiating a manually controlled read-out dependent on
the required output data and the mode of output. The procedures are as follows:
1.
To read out a single static set-up parameter:
(a) Press the key of the parameter required for read-out. The parameter key LED
will light and the parameter value will be displayed.
(b) Press Digital Interface "Output".
2.
To read out a complete Front Panel Test Set-up:
(a) Press Front Panel Set-up "No." and set to the required number. "F.P. no. x" will
be displayed ("x" being the selected Front Panel Set-up No).
(b) Press Digital Interface "Output".
3.
To read out a single set of dynamic parameters:
(a) Press Generator "Frequency".
(b) Press Digital Interface "Output".
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