Firmware: V2.18 / V--
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5.4.4 Analogue outputs
The process image ( PI ) for the analogue outputs of the controller (for details see chapter
) consists of unsigned 16-bit values. The characteristic curves for current and voltage are the
same.
The following table shows the relationships and gives examples of values for the pairs of the output value and
the associated value in the process image:
Measuring range
Output value
Value in the process image
0 V … 10 V
0 V
0
1 V
3200
5 V
16000
10 V
32000
> 10 V
> 32000
0 mA .... 20 mA
0 mA
0
1 mA
1600
4 mA
6400
20 mA
32000
> 20 mA
> 32000
The characteristic curves are linear and limited to a minimum of 0 and a maximum of 32000.
Examples:
Voltage
: If the value PI = 16000 is written to the process variable, a voltage of U = 5 V is applied to the
analogue voltage output by the controller.
Current
: If the value PI = 19200 is written to the process variable, a current of I = 12 mA is applied to the
analogue current output by the controller.