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Chapter 6, COMPUTER OPERATION
EQU n
C1 n
C2 n
?
6.7.06 Internal Oscillator
OA[.] [n]
6-20
n
Variable
4
ADC1
5
ADC2
6
ADC3
7
ADC4
8
C1
9
C2
10 0
11 1
12 FRQ
13 OSC
Dual modes only:-
14 X2
15 Y2
16 MAG2
17 PHA2
*Parameter n
is the only one that can be set to values of 12 or 13.
5
Output result of equation #1 or equation #2
The value returned is the output of the user equation #1 (n = 1) or equation #2 (n =
2), where the equations are defined using the Output equations menu (see section
5.3.08). The possible range is ±2,147,483,647 (signed 32-bit integer).
[n
]
Equation Constant C1
1
2
The value of n
sets the value of constant C1 for equation #1 (n
2
(n
= 2) in the range -30,000 to +30,000
1
[n
]
Equation Constant C2
1
2
The value of n
sets the value of constant C2 for equation #1 (n
2
(n
= 2) in the range -30,000 to +30,000
1
Fast Data Transfer command
The ? command offers a method of reading a combination of instrument outputs
which are sampled at the same time, thereby ensuring that they are correlated.
The response to the ? command is the output(s), expressed in floating point mode,
specified by the present setting of the Curve Buffer Define (CBD) command (see
section 6.7.09) and separated by delimiter character(s) defined by the DD command.
Hence for example, if CBD is set to 3, the response to the ? command will be:
<X output, in floating point mode><delimiter>
<Y output, in floating point mode><terminator>
Oscillator amplitude control
In fixed point mode n sets the oscillator amplitude in mV. The range of n is 0 to 5000
representing 0 V to 5 V rms.
In floating point mode n sets the amplitude in volts.
Range
±10000
±10000
±10000
±10000
0 to 100000
0 to 100000
zero
unity
0 to 250000000 (i.e. reference frequency in mHz)*
0 to 250000000 (i.e. oscillator frequency in mHz)*
±30000
±30000
0 to 30000
±18000
= 1) or equation #2
1
= 1) or equation #2
1
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