Operation; Reading Of Analog Input Data - Panasonic FP7 User Manual

Operation

Chapter 4

4.1 Reading of analog input data

Sample program
26
The processing of analog input data takes place in three steps:
1. Reception of analog signals
The analog unit receives analog signals from the thermocouple, RTD, or
external devices.
2. Analog to digital conversion
The analog input values are converted to digital output values automat-
ically and in sequence.
3. Storage of digital values
A user program is needed to read the digital output values from the
CPU's input area (WX).
Q Analog signal
W A/D conversion
E Digital output value
The digital output values from the analog unit are stored in the CPU's
memory areas DIXWX0, DIXWX2, DIXWX4, and DIXWX6. They are read by
channel and stored in four different variables.
FP7 Thermocouple and RTD Units User's Manual
Operation