Mitsubishi Electric QJ71E71-100 User Manual page 96

(2) When "Do not wait for OPEN" is selected for the Ethernet operation setting
Executing the OPEN/CLOSE instructions is required on the E71 to make the E71 enter open/close wait status
before receiving an open/close request from the connected device. When the open process is normally
completed, data sending and receiving are enabled. For the OPEN/CLOSE instructions, refer to "DEDICATED
INSTRUCTIONS". (
Open/close processes for the connection number 1
Ex.
Open status
Open enable status (closed)
(Active open acceptance enabled)
Closed status
Initial normal completion
signal X19
OPEN instruction
OPEN instruction
completion device
OPEN instruction
completion device + 1
Open abnormal detection
signal X18
CLOSE instruction
CLOSE instruction
completion device
CLOSE instruction
completion device + 1
Open completion signal
(address: 5000
Open request signal
(address: 5002
94
Page 235, CHAPTER 15)
Parameter
communications
Power-on completed
1
2
)
H
)
H
*1
1 scan
Abnormally
ended
SYN + ACK
3
SYN ACK
Abnormally ended
5
Abnormally
ended
FIN + ACK
4
FIN ACK
1 scan