Panasonic GM1 Series, Справочное руководство

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Implementation section
iLocal := iCh0_ConversionValue; // Read Analog data
(Note 1) Separately link corresponding channels in "Analog_8IN I/O Mapping".
REFERENCE
4.2 Setting Parameters and Performing I/O Mapping
5.1.2 Input Setting and Conversion Processing Time
The conversion processing time varies with the "Input setting" of the Analog_8IN parameter.
Select "Not execute / Execute" for the analog input conversion processing on a channel-by-
channel basis.
This can save the conversion time for channels that do not execute conversion processing. The
conversion time per channel is 50 μs.
Example: Conversion time for converting one channel (when channels other than CH0
are set to "Disable")
Converts only ch0 repeatedly.
1 cycle = 50 μs
Example: Conversion time for converting four channels (when CH4 to CH7 are set to
"Disable")
Conversion is executed in the order of ch0→ch1→ch2→ch3→ch0→ch1→ch2→ch3→... And
the conversion time for CH4 to CH7, which are set to non-execution, is saved.
1 cycle = 200 μs
Timing Chart of Input Processing
The conversion processing of the analog input unit is not synchronized with the I/O refresh of
the GM1 Controller. Therefore, it is necessary to consider the I/O refresh of the GM1 Controller
in addition to the conversion processing time.
■
Timing chart
● The data converted by the analog input unit is retrieved into the GM1 Controller at the I/O
refresh timing.
● At the time when the GM1 Controller performs an I/O refresh, the latest data is retrieved into
the "Ch0 input value" of the GM1 Controller.
5.1 Basic Operation
WUME-GM1AIO-01 5-3