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digital output from ADC212

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digital output from ADC212

Postby rlmattheys » Mon Aug 04, 2003 3:14 pm

Hi,

I've got a slight problem with an application. I'm using a 212 to collect data (2 channels from a process without any problems but after uaing test diplay fro alarm conditions I now need to trigger a plant signal. After a long number of years owning an adc212 I finally read the manual and found that I can't use the drivers to set an output (TTL) for driving a relay. Has anyone got one available - preferably for HPVee but happy to accept VB or C

Cheers

Bob
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Postby markspencer » Wed Aug 06, 2003 7:54 am

Hi,

I don't know how much this will be of help, but you possibly could use the adc212's signal generator. This can be controlled by the function call provided in the .dll.

adc_set_frequency.

This takes one parameter which is the frequency of the pulse in Hz.

The expected ampage is between 1 and 0.5 mA, so a transistor would be required to boost the ampage. This would then allow you to possibly drive the relay.

However, the frequency generator stops if any call is made to another function, except for adc200_ready.

These functions can be used in programs written under C, VB, HPVEE 4,5,and 6, Labview, and Delphi.

Best regards,
Regards,

Mark Spencer
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