Panasonic FP7 User Manual page 29

Time chart of A/D conversion
E x a m p l e
FP7 Thermocouple and RTD Units User's Manual
The digital output values from the analog unit are read by the CPU program
at the CPU's I/O refresh time. A/D conversion in the analog unit and the
CPU's processing cycles are not synchronized. Therefore, the latest digital
output value will only be written into the CPU's operation memory when an
I/O refresh is performed.
Conversion processing is enabled for 4 channels:
Q Analog signal, channel 0 of analog unit
W Conversion processing
E Order of conversion: channel 0channel 1channel 2channel 3
R CPU processing cycles
T I/O refresh
Y Digital output value (from analog unit), channel 0 of CPU
Operation
29