Buffer Memory Details - Mitsubishi A1SJ61BT11 User Manual

3 SPECIFICATION

3.5.2 Buffer memory details

Address
Hex. Dec.
0 0 (Prohibited to use)
H
Number of connected
1 1
H
modules
2 2 Number of retries
H
Number of automatic
3 3
H
return modules
4 4 (Prohibited to use)
H
5 5 (Prohibited to use)
H
Operation specification
6 6
H
when CPU is down
7 to F 7 to 15 (Prohibited to use)
H H
Reserved station
10 to 13 16 to 19
H H
specification
Invalid station
14 to 17 20 to 23
H H
specification
18 to 1F 24 to 31 (Prohibited to use)
H H
20 to 5F 32 to 95 Station information
H H
Do not write to areas that are prohibited to use. An error may occur.
POINT
The station information (address 20
becomes valid.
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
Table 3.5 Parameter information area list
Item
Set the number of connected remote/local station modules.
(including reserved stations)
Set the number of retries to the communication faulty station.
Set the number of remote/local stations modules that can
return with 1 link scan.
Specify the data-link status when there is a master station PC
CPU error.
Set a reserved station.
Specify an invalid station.
Set the connected remote/local station type.
(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)."
(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."
2
PROM.
Description
–
–
–
–
–
to 5F ) for the specified "number of connected" stations
H H
3 - 20
MELSEC-A
Default
–
64
3
1
–
–
0 (Stop)
–
0 (No specification)
0 (No specification)
–
Station type: Remote I/O
station
Number of occupied
stations: 1
Station numbers: 1 to 64