xPC Target

PCL-818HG Analog Input (A/D)

Scaling of Input to Output

Hardware Input	Block Output Data Type	Scaling
volts	double	1

Driver Block Parameters

Channel vector -- If you choose single ended from the MUX list, then enter numbers between 1 and 16. If you choose differential from the MUX list, then enter numbers between 1 and 8. For example, to use the first and second analog output (A/D) channels, enter

• [1,2]
  

Number the channels beginning with 1 even if the board manufacturer starts numbering the channels with 0.

Range vector -- Enter a range code for each of the channels in the channel vector. The range vector must be the same length as the channel vector. This board allows the range of each channel to be different.

The following table is a list of the ranges for this driver and the corresponding range codes.

Input Range (V)	Range Code	Input Range (V)	Range Code
-10 to +10	-10	0 to 10	10
-5 to +5	-5	0 to +1	1
-2.5 to +2.5	-2.5	0 to +0.1	0.1
-1.25 to +1.25	-1.25	0 to +0.01	0.01
-.625 to +.625	-0.625

For example, if the first channel is -10 to +10 volts, and the second channel is 0 to 5 volts, enter

• [-10,5]
  

The range settings have to correspond to the DIP-switch settings on the board. MUX -- From the list, choose either single-ended(16 channels) or differential (8 channels). Your choice must correspond to the MUX-switch setting on the board.

Sample time -- Base sample time or a multiple of the base sample time.

Base address -- Enter the base address of the board. It is important that this entry corresponds to the DIP-switch settings on the board. For example, if the base address is 300 (hexadecimal), enter

• 0x300
  

PCL-818HG

PCL-818HG Analog Output (D/A)