Fastech Ezi-IO EtherCAT DA, Руководство пользователя

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9.2.1.4. -10~10 [V] Voltage Output
In the voltage output range, the digital data -25,000~25,000 is converted to -10~10 [V] output. Actually, the
digital data -26,250~26,250 is converted to -10.5~10.5 [V].
If the digital data is greater than 26,250, it outputs 10.5 [V]. Or if the digital data is less than -26,250, it outputs -
10.5 [V].
The following formula is used when converting digital data to analogue signals.
Analogue Output[V] =
20
50000
× Digital Data
Figure 9-4. Data Conversion for Output Range -10 ~ 10 [V]
9.2.1.5. 0~20 [mA] Current Output
In the voltage output range, the digital data 0~25,000 is converted to 0~20 [mA] output. Actually, the digital data
0~26,250 is converted to 0~21 [mA].
If the digital data is greater than 26,250, it outputs 21 [mA]. Or if the digital data is less than 0, it outputs 0 [mA].
The following formula is used when converting digital data to analogue signals.
Analogue Output[mA] =
20
25000
× Digital Data
Figure 9-5. Data Conversion for Output Range 0 ~ 20 [mA]
Digital Data
Voltage
10.5 V
25000 26250 0
-26250
-10.5 V
10 V
-25000
-10 V
Digital Data
Current
21 mA
25000 26250
0
20 mA