Festo CPX-AB Series Electronic Manual page 186

5. Analogue output module CPX−2AA−U−I
1
Digital output value
2
Digital signals after
A−D conversion
(resolution: 12 bits)
3
Analogue output
signal after scaling
Fig. 5/5: Example scaling data format VZ + 15 bits linear scaled"
1
Digital output signal
after scaling
2
Limits
3
Less than or
exceeding the limits
Fig. 5/6: Limit monitoring with data format VZ + 15 bits linear scaled"
5−30
Scaling end values with data format VZ + 15 bits
linear scaled"
The following diagram shows an example of the data format
VZ + 15 bits linear scaled" with the scaling end values:
Lower limit = 400
Upper limit = 2000
With these values the output signal corresponds to e.g. for
the signal range 4...20 mA the digital output value multiplied
by 0.01 mA.
1
0 400
2
0
3
0 4 mA
The scaling end values in this data format are identical with
the limits for less than or exceeding the rated range:
2
1
400
3
2000
4095
20 mA
2
2000
Festo P.BE−CPX−AX−EN en 0503b