Chapter 2
– 21 –
PCI-1721 User’s Manual
Advantech Co., Ltd.
www.advantech.com
Configuring the Device
Step 4: On the Device Setting dialog box (Fig. 2-10), you can config-
ure the voltage source either as External or Internal, and
specify the voltage output range for the 4 D/A channels.
Fig. 2-10 The Device Setting dialog box
Note:
✎
Users can configure the source of D/A reference voltage either as
Internal or External, and select the output voltage range. When
selecting voltage source as Internal, users have six options for the
output voltage ranges and current ranges: 0 ~ 5 V, 0 ~ 10 V, -5 ~ 5 V, -
10 ~ 10 V, 0~20 mA and 4~20 mA.
When selected as External, the output voltage range is determined by
the external reference voltage in the following way :
By inputting an external reference voltage: -xV , where |x| <= 10, you
will get a output voltage range: 0 to xV.