2.6.6 0~20 mA Current Output
The current output for PISO-DA/PIO-DA series cards is always in the range of
0~22 mA. If the user needs to output a current in the range of 0~20 mA, the
software calibration is the same as that described in Sec. 2.6. Iout will be in the
range of 0~20 mA, so the DaValue will approximately be from 0x1fff to 0x3fff,
which means that the resolution is about 13 bits.
2.6.7 4~20 mA Current Output
The current output for PISO-DA/PIO-DA series cards is always in the range of
0~22 mA. If the user needs to output a current in the range of 4~20 mA, the
software calibration is the same as that described in Sec. 2.6. Iout will be in the
range of 4~20 mA, so the DaValue will approximately be from 0x2600 to 0x3fff,
which means that the resolution is about 13 bits.
2.6.8 No VR & No Jumper Design
In a conventional 12-bit D/A board, for example the A-626/A-628, there are
many jumpers that allow the following functions to be performed:
(1) Selecting the reference voltage (internal -10/-5/or external)
(2) Selecting unipolar/bipolar (0-10 V or
±
10 V)
(3) Selecting different output ranges (0-10 V or 0-5 V)
There are also many VRs that allow the following functions to be performed:
(1) Adjustment of the output voltage offset
(2) Full-scale adjustment of the output voltage
(3) Adjustment of the output current offset
(4) Full-scale adjustment of the output current
PIO-DA/PISO-DA Series User Manual (Ver.2.9, Feb. 2011, PMH-009-29 )
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