APPX
Appendix 4 Link Special Register (SW) List
199
A
Appendix 4
Link Special Register (SW) List
Link special registers (SW) store information during data link as numerical values. Error locations and causes can be checked
by using and monitoring link special registers (SW) in programs.
Application of link special registers (SW)
By using link special registers (SW), the status of the CC-Link IE Field Network can be checked.
Ranges of areas that are turned ON/OFF by users and by the system
The following is a range when the link special register (SW) is assigned from SW0000 to SW01FF.
• Range where data are stored by users: SW0000 to SW001F
• Range where data are stored by the system: SW0020 to SW01FF
Link special register (SW) list
A list of link special registers (SW) when they are assigned from SW0000 to SW01FF is described as follows.
Do not write any data to an area whose number is not on the link special register (SW) list. Doing so may
cause malfunction of the programmable controller system.
Number
Name
Description
Availability
Master
station
Local
station
SW0000
Link stop/start
direction
Sets the station where cyclic transmission is stopped or started.
• 00H: Own station
• 01H: All stations
• 02H: Specified station
• 80H: Own station (Forced link start)
• 81H: All stations (Forced link start)
• 82H: Specified station (Forced link start)
Stopping/starting of cyclic transmission is performed by System link start (SB0002) or
System link stop (SB0003).
• When Specified station (02H or 82H) is selected, the own station is not included.
SW0001 to
SW0008
Link stop/start
direction
When setting 02H or 82H by the Link stop/start direction (SW0000), this sets the
station number that stops or starts cyclic transmission.
• 0: No direction issued for stop or start
• 1: Direction issued for stop or start
SW0009
Arrival monitoring
time (RIRD/RIWT)
Specify the monitoring time until instruction completion.
If the direction is not completed within the time, it is resent for the number of resends
specified by the Number of resends (RIRD/RIWT) (SW000B).
• 0: 10 seconds (default value)
• 1 to 360: 1 to 360 seconds
If a value outside the above settings is made, operation is performed for 360 seconds.
If the Number of resends (RIRD/RIWT) (SW000B) is set, the time until the dedicated
instruction fails is shown below.
(Number of resends (RIRD/RIWT) + 1)
×
Arrival monitoring time (RIRD/RIWT)
SW0001
SW0002
SW0003
SW0004
SW0005
SW0006
SW0007
SW0008
b15 b14 b13 b12 b11 b10 b9 b8
b7 b6 b5 b4 b3 b2 b1 b0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
Each number in the table represents station No.
Summary of Contents for MELSEC Q80BD-J71GF11-T2
Page 2: ......
Page 6: ...4 Disposal Precautions CAUTION When disposing of this product treat it as industrial waste ...
Page 118: ...116 12 MONITORING MEMO ...
Page 140: ...138 14 MELSEC DATA LINK LIBRARY MEMO ...
Page 142: ...140 15 PROGRAMMING 15 1 Precautions on Programming MEMO ...
Page 243: ...241 I U Utility 83 ...
Page 247: ......
