Dear Technical Support Team,
I'd like to use analog input with ±12V.
Q1)
Both 0x08H and 0x0AH should be set same value for AIN_xA. Also both 0x09H and 0x0Bh should be set same value for AIN_xB.
Is it correct?
I confirmed the ±12V input operation with these settings, however register map on datasheet doesn't describe the details of "0x08H and 0x09H".
If you have any information, could you share it?
Q2)
GUI shows 0x08H and 0x09H are reserve and read only. Is it correct?
When checking "Over Range", then "Both 0x08H and 0x0AH" and "Both 0x09H and 0x0Bh" are changed automatically.
■Datasheet
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In software mode, an individual analog input range can be configured per channel. The device also supports a 20% overrange feature on all input channels in software mode. Program the D[7:0] bits from the 0x08H and 0x0AH registers to individually enable the overrange feature for channels AIN_xA. Program the same value in both registers. Program the D[7:0] bits from the 0x09H and 0x0Bh registers to individually enable the overrange feature for channels AIN_xB. Program the same value in both registers. See the 0x0AH and 0x0BH register details for the programmed register values. The programmed range of the selected channel is increased by 20%. For example, if channel AIN_0A is programmed for a ±10-V range with the overrange feature, the resultant input range is ±12 V.
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Best Regards,
ttd