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8 PROGRAMMING
Number
Name
SW0069
Loading status
(669
)
H
SW006A
Switch setting status
(66A
)
H
SW006D
Max. link scan time
(66D
)
H
SW006E
Current link scan time
(66E
)
H
SW006F
Min. link scan time
(66F
)
H
SW0070
Total number of stations
(670
)
H
SW0071
Max. communication
(671
)
station number
H
SW0072
Number of connected
(672
)
modules
H
SW0073
Standby master station
(673
)
number
H
SW0074
(674
)
H
SW0075
(675
)
Reserved station specified
H
SW0076
status
1
(676
)
H
SW0077
(677
)
H
SW0078
(678
)
H
SW0079
(679
)
Error invalid station
H
SW007A
specified status
(67A
)
H
SW007B
(67B
)
H
SW007C
(67C
)
H
SW007D
(67D
)
Temporary error invalid
H
SW007E
station specified status 1
(67E
)
H
SW007F
(67F
)
H
: Link special resister added to the function version B or later
1 : Turns on only the bit for the head station number.
2 : Check is performed only when the link is started up, and stored.
Table 8.2 Link special register list (continued)
The station number overlap and consistency with the parameters are
stored for each module.
2
0
: Normal
Other than 0 : Stores error code (Refer to Section 13.3.)
Details are stored in SW0098 to 9B and SW009C to 9F.
Switch setting status is stored.
0
: Normal
Other than 0 : Stores error code (Refer to Section 13.3.)
Stores the maximum value of the link scan time (in 1 ms units).
Stores the current value of the link scan time (in 1 ms units).
Stores the minimum value of the link scan time (in 1 ms units).
Stores the final station number set in the parameter.
1 to 64 stations
Stores the maximum station number (station number of the station
number setting switch) in the data link.
1 to 64 (stations)
Stores the number of modules in the data link.
1 to 64 (modules)
Stores the standby master station number.
1 to 64 (stations)
Stores the setting status of reserved station.
0: Not reserved station
1: Reserved station
b15
SW0074
16
SW0075
32
SW0076
48
SW0077
64
Stores the error invalid station setting status.
0: Not error invalid station
1: Error invalid station
b15
SW0078
16
1
SW0079
32
SW007A
48
SW007B
64
Stores the temporary error invalid station specified status.
0 : Not temporary error invalid station
1 : Temporary error invalid station
b15
SW007C
16
SW007D
32
SW007E
48
SW007F
64
Description
b14
b13
b12
to
b3
15
14
13
to
4
31
30
29
to
20
47
46
45
to
36
63
62
61
to
52
1 to 64 in the table indicates station numbers.
b14
b13
b12
to
b3
15
14
13
to
4
31
30
29
to
20
47
46
45
to
36
63
62
61
to
52
1 to 64 in the table indicates station numbers.
b14
b13
b12
to
b3
15
14
13
to
4
30
29
31
to
20
47
46
45
to
36
63
62
61
to
52
1 to 64 in the table indicates station numbers.
8 - 18
MELSEC-A
Availability
(
: available,
: not available )
Online
Master
station
b2
b1
b0
3
2
1
19
18
17
35
34
33
51
50
49
b2
b1
b0
3
2
1
19
18
17
35
34
33
51
50
49
b2
b1
b0
3
2
1
19
18
17
35
34
33
51
50
49
Offline
Local
station
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- Communication Overview
- Buffer Memory List
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