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3 SPECIFICATION
MELSEC-QnA
(c) Number of automatic return modules
This sets the number of remote/local stations that can return to the system
during 1 link scan.
The range is "1 to 10 (modules)."
(d) Operation specification when CPU is down
This specifies the data-link status when the master station programmable
controller CPU has an error which "stops the error operation".
"0" is stop and "1" is continue.
(e) Reserved station specification
This is set to include the remote/local stations that are not actually
connected in the number of connected modules, so that a data link error
does not occur.
1
When a connected remote/local station is set as a reserved station, the
station cannot perform any data link at all.
2
Turn on the bit corresponding to the station number to be set as
reserved.
However, for the remote/local station that occupies more than 2 stations,
turn on the only bit for the station numbers set by the module's station
number setting switch.
1 to 64 in the table below indicate the station numbers.
Address b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
10
H 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
11H 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
12H 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
13H 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
<Setting example>
When setting a local station with station number 4 and a remote station
with station number 9 as reserved in the system configuration below:
Stations to be connected in the future
Master
station
Remote station
(occupies 2 stations)
Station No.1
Remote station
(occupies 1 station)
Station No.3
Remote station
(occupies 1 station)
Station No.8
Remote station
(occupies 1 station)
Station No.9
Local station
(occupies 4
stations)
Station No.4
Address b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
10
H 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0
11H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
12H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
13H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0