Mitsubishi Electric QJ71E71-100 User Manual page 97

After parameter communications, check that the initial process of the E71 is normally completed.
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(Initial normal completion signal (X19): ON)
Start the open process using the OPEN instruction. (Open request signal (address: 5002
2
The E71 starts the open process upon receiving the open request (SYN) from the connected device. When
3
the open process is normally completed, Open completion signal (address: 5000
communications are enabled.
The E71 starts the close process upon receiving the close request (FIN) from the connected device. When the
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close process is completed, Open completion signal (address: 5000
are disabled.
Start the close process using the CLOSE instruction. (Open request signal: OFF)
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*1 An open request (SYN) received after the normal completion of an initial process and before the E71 is in the open
acceptance enable status will cause an error, and the E71 sends a connection forced close (RST).
● Change connection settings before executing the OPEN instruction.
● Once an open process is performed, an open request cannot be canceled before the open process is completed.
Perform a close process (Execute the CLOSE instruction) after the open process is completed.
CHAPTER 7 COMMUNICATION PROCEDURE
(b0)): ON)
H
(b0)) turns on and data
H
(b0)) turns off and data communications
H
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