2-22 Analog Outputs
Important: If absolute value is enabled but the quantity selected for output
is not a signed quantity, then the absolute value operation will
have no effect.
Scaling Blocks
The user defines the scaling for the analog output by entering analog output
voltages into two parameters, [Analog Out1 Lo] and [Analog Out1 Hi].
These two output voltages correspond to the bottom and top of the possible
range covered by the quantity being output. The output voltage will vary
linearly with the quantity being output. The analog output voltage will not
go outside the range defined by [Analog Out1 Lo] and [Analog Out1 Hi].
Analog Output Configuration Examples
This section gives a few examples of valid analog output configurations and
describes the behavior of the output in each case.
Example 1 -- Unsigned Output Quantity
• [Analog Out1 Sel] = “Output Current”
• [Analog Out1 Lo] = 1 volt
• [Analog Out1 Hi] = 9 volts
Note that analog output value never goes outside the range defined by
[Analog Out1 Lo] and [Analog Out1 Hi]. This is true in all cases, including
all the following examples.
Example 2 -- Unsigned Output Quantity, Negative Slope
• [Analog Out1 Sel] = “Output Current”
• [Analog Out1 Lo] = 9 volts
• [Analog Out1 Hi] = 1 volts
10V
[Analog Out1 Hi]
[Analog Out1 Lo]
0V
0% 200%
Output Current
Analog
Output Voltage
Output Current vs.
Analog Output Voltage
Marker Lines
10V
[Analog Out1 Lo]
[Analog Out1 Hi]
0V
0% 200%
Output Current
Analog
Output Voltage
Output Current vs.
Analog Output Voltage
Marker Lines
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