Reserved Station Function - Mitsubishi A1SJ61BT11 User Manual

4 FUNCTIONS

4.6 Reserved Station Function

POINT
If already connected remote and local stations are set as reserved station, the specified
remote and local stations cannot perform data link at all.
Address b15
10 16
H
11 32
H
12 48
H
13 64
H
Master
station
Address b15
10 0
H
11 0
H
12 0
H
13 0
H
This is a function to treat the remote and local stations that are not actually connected
(but planned for connection in the future) not as "data-link faulty stations".
(1) Setting method
The reserved station specification is performed with parameters (buffer memory
address 10 to 13
H
Turn on the bit corresponding to the station number of the station to be reserved.
However, for remote/local stations that occupy more than 2 stations, turn on the
only bit corresponding to the station number set in the module's station number
setting switch.
The buffer memory configuration is shown below. (1 to 64 indicates station
numbers.)
b14 b13 b12 b11
15 14 13 12
31 30 29 28
47 46 45 44
63 62 61 60
(2) Setting example
(a) System configuration example
When one local station and one remote station are to be connected in the
future to the system with three remote stations:
Station No. 1
Station No. 3
Remote station Remote station
(occupies 2 stations) (occupies 1 station)
(b) Buffer memory setting example
Turn on the 3rd bit, corresponding to station No. 4, and 8th bit,
corresponding to station No. 9. (Set "264" for address 10
b14 b13 b12 b11
0 0 0 0
0 0 0 0
0 0 0 0
0 0 0 0
).
H
b10 b9 b8 b7
11 10 9 8
27 26 25 24
43 42 41 40
59 58 57 56
Modules to be connected in the future
Station No. 4
Local station
(occupies 4
stations)
b10 b9 b8 b7
0 0 1 0
0 0 0 0
0 0 0 0
0 0 0 0
4 - 22
MELSEC-A
b6 b5 b4 b3
7 6 5 4
23 22 21 20
39 38 37 36
55 54 53 52
Station No. 8
Remote station Remote station
(occupies 1 station) (occupies 1 station)
.)
H
b6 b5 b4 b3
0 0 0 1
0 0 0 0
0 0 0 0
0 0 0 0
b2 b1 b0
3 2 1
19 18 17
35 34 33
51 50 49
Station No. 9
b2 b1 b0
0 0 0
0 0 0
0 0 0
0 0 0