
Programming Example 2: ME1DA6HAI-Q used in Remote I/O Network
5 – 24
● Disconnection detection status and processing at disconnection detection
Fig. 5-22:
Sequence program for disconnection detection
Number Description
When the disconnection detection signal (X12D) is ON, the status of the disconnection detection flags is
moved to the register D49.
When the REMFR instruction has been executed without an error the status of the disconnection detection
flags is moved further to the internal relays M30 to M35
Processing at disconnection detection
CH1
CH3
When X23 (Disconnection detection reset signal) is switched ON while the disconnection detection signal is
ON, the disconnection detection clear request (Y12D) is turned ON.
When there is no disconnection indicated, the disconnection detection clear request (Y12D) is turned OFF.
The internal relays storing the disconnection detection flags are also cleared.
Tab. 5-18: Description of the program shown above
Processing at disconnection detection
Processing at disconnection detection
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