Details Of I/O Signals - Mitsubishi Electric MELSEC iQ-R Series User Manual

Section 4 I/O SIGNALS TO CPU MODULE
4.2

Details of I/O signals

Detailed explanation about I/O signals of RE81WH is shown as follows
4.2.1 Input signals
(1) Module ready (Xn0)
After the power of CPU module is turned on or the CPU module reset is performed, it will turn ON upon the
measurement is ready.
This signal (Xn0) is turned OFF when energy measuring module displays a hardware error, then RUN LED
is turned off.
(2) Periodic electric energy 1 data completion flag (Xn1)
When Periodic electric energy 1 measurement flag (Yn1) is turned OFF and measuring of the periodic
electric energy 1 is stopped, then this signal (Xn1) turns ON.
When Periodic electric energy 1 (Yn1) is turned ON and measuring of the periodic electric energy 1 is started,
then this signal (Xn1) turns OFF.
Where you obtain data in a state where Periodic electric energy 1 is settled, obtain the data while this signal
(Xn1) is ON.
* For specific usage procedures, refer to "3.4.2".
(3) Periodic electric energy 2 data completion flag (Xn2)
The usage procedure is the same as Periodic electric energy 1 data completion flag (Xn1).
Refer to (2).
(4) Periodic electric energy 1 reset completion flag (Xn3)
When Periodic electric energy 1 reset request (Yn3) is turned ON, and the periodic electric energy 1 stored
in the buffer memory is reset, then this signal (Xn3) turns ON.
When Periodic electric energy 1 reset request (Yn3) is turned off, the signal (Xn3) turns OFF.
* For specific usage procedures, refer to "3.4.2".
(5) Periodic electric energy 2 reset completion flag (Xn4)
The usage procedure is the same as Periodic electric energy 1 reset completion flag (Xn3).
Refer to (4).
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RE81WH