Unit Setting And Conversion Processing Time - Panasonic FP7 User Manual

4.2.2 Unit Setting and Conversion Processing Time

Conversion time varies with the configuration setting conditions.
Isolation setting and conversion processing time
• Isolated: 5 ms/ch • Non-isolated: 25 μs/ch
• The speed of A/D conversion processing will become faster if non-isolation is set. Each
channel is isolated by switching the respective photo-MOS relays of the channels at the time
of conversion. The photo-MOS relays are always turned ON at the time of non-isolation and
the commons will be shared.
Conversion processing execution/non-execution setting and conversion processing time
Select the execution or non-execution of the conversion processing of analog input on a
channel-by-channel basis. This can save the conversion time for channels that do not execute
conversion processing.
Example) Conversion time for four channels
Converted in the order of ch0→ch1→ch2→ch3→ch0→ch1→ch2→ch3→.... (1 cycle = 100 μs
at the time of non-isolation)
Example) Conversion time for two channels (with CH2 and CH3 excluded).
Conversion is executed in the order of ch0→ch1→ch0→ch1→ch0→ch1→ch0→ch1→... and
the conversion time for CH2 and CH3, which are excluded, is saved. (1 cycle = 50 μs at the
time of non-isolation)
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4.2 Option settings
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