Mitsubishi MELSEC Q Series User Manual page 170

6 PARAMETER SETTINGS
Setting item
Sets the type of the connected remote station, local station, intelligent device
station and standby master station.
Default value
Station
Setting range
information
Station type
Number of occupied stations : 1 to 4
Station number
Specifies the assignments of buffer memory sizes during transient transmission to
a local station, a standby master station and an intelligent device station.
Default values
Send buffer size
Receive buffer size
Assignments of Automatic update buffer size : 80
communication Setting range
buffer and Communication buffer size : 0
automatic
update buffer
Automatic update buffer
6 - 4
Table 6.1 Parameter setting items (2/2)
Description
: Ver.1 remote I/O station, occupies 1 station,
station number 1 to Ver.1 remote I/O station,
occupies 1 station, station number 64
: Remote I/O station, remote device station,
intelligent device station/Ver.1, Ver.2 (single,
double, quadruple, octuple)
: 1 to 64
: 40 (64) (word)
H
: 40 (64) (word)
H
(128) (word)
H
(0) (word) (Not specified), or 40
H
to 1000
However, the total communication buffer size
must be 1000
: 0 (0) (word) (Not specified), or 80
H
to 1000
However, the total automatic buffer size must be
1000 (4096) (word) or less.
H
POINT
(1) For the communication buffer size, specify the size that is calculated by adding
seven words to the data size to be sent or received.
For the automatic update buffer size, specify the size required for each
intelligent device station.
(2) The network parameters other than operational settings and mode setting are
also made valid when the PLC CPU is switched from STOP to RUN.
Table 6.2 indicates the reference sections for the detailed explanation of the parameter
setting methods.
Parameter setting with
GX Developer
Parameter setting with
dedicated instruction
H
(4096) (word)
H
(4096) (word) or less.
H
H
(4096) (word)
H
Table 6.2
Remote net ver.1 mode
Remote net ver.2 mode
Remote net additional mode
Remote I/O net mode
Remote net ver.1 mode
Remote net ver.2 mode
Remote net additional mode
Reference Master
section station
———
(64) (word) ———
(128) (word)
Mode
MELSEC-Q
Standby
Local
master
station
station
Reference
section
Section 6.3
Section 6.4
Section 6.5
Section 6.6
Section 6.7
6 - 4