VXi VM4016 User Manual

www.vxitech.com 

VM4016 Programming 

35 

 
This example is for controlling a device that can tolerate a maximum input voltage level at  
+35 VDC for a maximum time of 250 ms before damage will occur.  The input power to this 
device is provided from a remote source that can be disabled.  A low signal applied to the power 
source remote inhibit will disable its output.  The controller will then be notified that an out-of- 
tolerance condition has occurred and the device was shut down. 
 
The following code is for monitoring a single input for voltage level that exceeds +35VDC for 
longer than 250 ms.  A low latched output is required to be generated upon detection of the 
interrupt that is used to inhibit the remote power source. 
 
 
COMMANDS 

 
INP:RANG 100,(@1) 

Selects ±100 volts as the input range for Channel 1. 

 
INP:DEB 0.25 

Sets the debounce time limit to 250 ms. 

 
INP:MASK 1,(@1) 

Enables Channel 1 to generate an interrupt. 

 
INP:MASK 0,(@2:16) 

Disables Channels 2 through 16 from generating an 
interrupt. 

 
INP:POL NORM,(@1) 

Selects Channel 1 to generate an interrupt when 
Channel 1 is greater than the offset voltage. 

 
INP:OFFS +3.5,(@1) 

Selects +35.0 volts as the offset (reference) voltage. 

 
OUTP:POL:EXT:LATC INV 

Sets the external latched output to be active low. 

 
 

Figure 3-1 and the explanation that follows illustrates what is occurring during this example.