Contec PC-HELPER Series Reference Manual page 56

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Function
AI-1204Z-PE Reference Manual
 Stop Condition
The condition for controlling the stop of sampling can be selected from among the last sampling
count, conversion data comparison, an external trigger, and software abort.
The product stops sampling whenever an error occurs irrespective of the stop condition setting.
Software
Sampling continues indefinitely in this mode. Sampling only stops in response to a software
command or an error.
Last sampling count
The product stops sampling after storing conversion data to memory for the specified number of
times of sampling.
Input data comparison
Once the product has started sampling, it compares the analog signal input through a specified
channel to the value of the preset comparison level. If the analog signal satisfies the condition, the
product stops sampling.
Level comparison conditions are set as two conditions: level and direction.
The above sketch shows that the level comparison condition is satisfied in the rising direction.
The start condition is satisfied when the analog signal at the specified channel passes the comparison
level in the rising direction. Conversion data items are stored to memory, starting with those at solid
dots.
The above sketch shows that the level comparison condition is satisfied in the falling direction.
The start condition is satisfied when the analog signal at the specified channel passes the comparison
level in the falling direction. Conversion data items are stored to memory, starting with those at solid
dots.
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