Specifications

9 ComputerBoards
9-34
Note If a EXP32 is used and the EXP-channels 16 to 31 should be acquired, the
elements of the EXP Channel Vector have still to be in the range of 0 to 15.
Therefore the EXP-channel numbers have to be subsaturated by the constant
16.
A special case is provided by setting the EXP Channel Vector to an empty
vector. In this case it is assumed that no EXP-board is connected to the
specified A/D-channel (see dialogue field A/D Board Channel) and the signal is
directly connected to the A/D-input of the CIO-DAS16Jr board. This feature
allows to use the A/D-channels of a CIO-DAS16Jr either for EXP-channels or
for direct input. Therefore it is not necessary to purchase another A/D-board for
direct input.
Attention. This feature should only be used if at least one EXP-board has to be
connected to the CIO-DAS16Jr. If all inputs are directly connected to the A/D
board use the CIO-DAS16Jr/12 (2.2.1) driver instead which allows much
higher sample rates.
EXP Gain - This parameter describes the gains for each EXP-channel used.
This vector corresponds over his indices with the EXP-gain vector and must
therefore have the same length. Because this I/O-driver can be used together
with all different EXP-boards there is no restriction about the gain value itself.
The EXP-board manual should be contacted to know what the gains of the
different EXP-boards are. The gains on the EXP-board depend on several
DIP-switches on the specific EXP-board.
Example:EXP Channel Vector:[4,0,12]
EXP Gain Vector:[1,1000,200]
EXP-channel 4 has gain 1, channel 0 gain 1000 and channel 12 gain
200
If EXP Channel Vector is an empty vector EXP Gain Vector has to be an empty
vector as well.
A/D Board Channel - field specifies to which A/D-channel of the
CIO-DAS16Jr the block of 16 EXP-channels are mapped. Because the input
coupling of the A/D board has to be single-ended channel 0 to 16 can be used.
The channel selection jumpers on the EXP-boards have to be set accordingly to
this software setting.
A/D Board Range - field specifies the input voltage range for the CIO-DAS16/
JR which is the same for all 16 single-ended channels.