DaqBook/3000USB User’s Manual
988291
Setpoint Configuration for Output Control 6-11
The Setpoint Status Register
Regardless of which software application you are using with the DaqBook/3000USB, a setpoint status
register can be used to check the current state of the 16 possible setpoints. In the register, Setpoint 0 is the
least significant bit and Setpoint 15 is the most significant bit. Each setpoint is assigned a value of 0 or 1.
0 indicates that the setpoint criteria is not met, i.e., the condition is false. 1 indicates that the criteria has
been met, i.e., the condition is true. Related information is provided in the overview (pages 6-1 and
6-2.)
In the following example, the criteria for setpoints 0, 1, and 4 is satisfied (True); but the criteria
for the other 13 setpoints has not been met.
From the above table we have 10011 binary, or 19 decimal, derived as follows:
Setpoint 0, having a True state, shows “1
;
”
giving
us decimal “1
.
”
Setpoint 1, having a True state, shows
“1;” giving us decimal “2.”
Setpoint 4, having a True state, shows “1;” giving us decimal “16.”
For proper operation, the Setpoint Status Register must be the last channel
in the scan list.
Setpoint #
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
True ( 1 )
False ( 0 )
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
1
<<< Most Significant Bit
Least Significant Bit >>>
