Mitsubishi Electronics AJ61QBT11 用户手册
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3 SPECIFICATION
MELSEC-QnA
3.5.2 Buffer memory details
The details of each item shown in Table 3.4 of Section 3.5.1 is described.
(1) Parameter information area
The conditions to perform data link is set.
Also, these can be registered in the E
Also, these can be registered in the E
2
PROM.
Table 3.5 Parameter information area list
Address
Hex. Dec.
Item Description Default
0
H
0
(Prohibited to use) –
–
1
H
1
Number of connected
modules
modules
Set the number of connected remote/local station modules.
(including reserved stations)
(including reserved stations)
64
2
H
2
Number of retries
Set the number of retries to the communication faulty station.
3
3
H
3
Number of automatic
return modules
return modules
Set the number of remote/local stations modules that can
return with 1 link scan.
return with 1 link scan.
1
4
H
4
(Prohibited to use) –
–
5
H
5
(Prohibited to use) –
–
6
H
6
Operation specification
when CPU is down
when CPU is down
Specify the data-link status when there is a master station
programmable controller CPU error.
programmable controller CPU error.
0 (Stop)
7
H
to F
H
7 to 15
(Prohibited to use) –
–
10
H
to 13
H
16 to 19
Reserved station
specification
specification
Set a reserved station.
0 (No specification)
14
H
to 17
H
20 to 23
Invalid station
specification
specification
Specify an invalid station.
0 (No specification)
18
H
to 1F
H
24 to 31
(Prohibited to use) –
–
20
H
to 5F
H
32 to 95 Station information
Set the connected remote/local station type.
Station type: Remote I/O
station
Number of occupied
stations: 1
Station numbers: 1 to 64
station
Number of occupied
stations: 1
Station numbers: 1 to 64
Do not write to areas that are prohibited to use. An error may occur.
(a) Number of connected modules
This sets the number of remote/local station modules connected to the
master station (including reserved stations).
This is not a station count.
The setting range is "1 to 64 (modules)."
master station (including reserved stations).
This is not a station count.
The setting range is "1 to 64 (modules)."
POINT
The station information (address 20
H
to 5F
H
) for the specified "number of connected" stations
becomes valid.
(b) Number of retries
This sets the number of retries to the remote/local station with a data link
error.
The setting range is "1 to 7 (times)."
If the remote/local station cannot recover a normal data link after
performing specified number of retries, the station becomes a "data-link
faulty station."
error.
The setting range is "1 to 7 (times)."
If the remote/local station cannot recover a normal data link after
performing specified number of retries, the station becomes a "data-link
faulty station."