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CHAPTER 10 PROGRAMMING
10
10.3 When A/D Converter Module is Connected to Head Module
7. Write the set parameter to the head module and reset the head module, or turn off and then on the
programmable controller power supply.
[Online] [Write to PLC...]
(7) Program example
The following shows a program example. The program can be written to the CPU module of the master station.
or Power OFF ON
Reads the CH1 digital output value.
Reads A/D conversion completed flag.
Reads the CH2 digital output value.
Reads the CH3 Scaling value
(digital operation value).
Reads the warning output flag
(Process alarm).
Processing when a warning occurs for
CH2 process alarm upper limit value
Processing when a warning occurs for
CH2 process alarm lower limit value
Reads the input signal error detection
flag.
Processing when the CH1 input signal
error is detected.
Turns on the input signal error reset
signal.
Outputs the error code in BCD.
Turns on Error clear request.
Turns off Error clear request.
Process alarm occurrence status and processing at warning occurrence
Input signal error defection status and processing at error detection
Error code display and reset processing
Digital output value
Processing when a warning occurs
Processing when a warning occurs
Processing when an input signal error is detected
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