Mitsubishi MELSEC Q Series Handbook

3 ETHERNET INTERFACE MODULE REPLACEMENT
3 - 29
3.9.2 Open/close processing
The following shows a program example for performing open processing/close processing.
(1) A/AnS series
[Open processing]
The A/AnS series performs open processing by writing communication parameters
by the sequence program to buffer memory and turning the open request signal (Y8) ON.
[Close processing]
The A/AnS series performs close processing by turning the open request signal (Y8) OFF,
or by the close request (FIN) from an external device.
(a) Program conditions
The following shows a program example for performing open processing (unpassive open)
on connection No.1 when initial normal end (X19) turns ON.
Set the communication parameters as follows. (Otherwise, use default values.)
Point
The open processing and the close processing on the Q series have different methods from those on
the A/AnS series.
When replacing the A/AnS series with the Q series, refer to Section 3.9.2 (2) and change the program of
the open processing and close processing.
Buffer memory address
Item Set value
DEC (HEX)
16 (10
H
)
Connection No.1 application setting area
8000
H
Sets the application of the fixed buffer (b0). 0: Transmission
Destination existence check setting (b1)
0: Existence check
0: No existence check
Pairing open setting (b7)
0: Pairing open
0: Not pairing open
Communication method (protocol)
Communication protocol setting (b8)
0: TCP/IP
Communications using fixed buffer procedure
performed/not performed (b9)
0: Performed
Open method setting (b15, b14) 10: Unpassive open
24 (18
H
)
Host port number (For connection No.1)
500
H

Mitsubishi MELSEC Q Series Specifications

General

Brand	Mitsubishi
Model	MELSEC Q Series
Category	Controller
Language	English