Real-Time Measurement and Control

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Sleep control

This probably won't work but I thought I would ask.

 

If  one were to design a fault tolerant system, one where a given module in the system could fail and be shutdown while the remainder of the system continues working one might be tempted to use the sleep signal for this purpose..Unfortunately the sleep signal appears to be a system resource and cannot be used to shutdown an individual module. Is this correct?A

 

Because the sleep signal controls power to the module it could even be used as a reset for  a module that did not

Respond in a given time- a watchdog at the module level with the ability to shut down a module that failed say three attempts

 

I know how to use the sleep signal at the host application end but is there a way to include it in the fpga driver ? I have the MDK but it does not cover this aspect either.

 

henry

 

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henryk,

 

All of the resources that I have found indicate that the sleep mode feature applies to all modules at once. (i.e. non module selective)

 

"When you enable sleep mode, installed and onboard C Series I/O modules in the chassis or device enter a low-power state."

How Can I Achieve Low Power Consumption with CompactRIO?

http://digital.ni.com/public.nsf/allkb/AE7320AEEB6D77188625713B007EC2C4?OpenDocument


Enabling Sleep Mode on a CompactRIO Chassis, MXIe-RIO Chassis, or Single-Board RIO Device (FPGA Interface)

http://zone.ni.com/reference/en-XX/help/370984R-01/criodevicehelp/enabling_sleep_mode/

 

 

Thanks

Kareem W.
National Instruments
Web Product Manager
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