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144
Setting Data Links
Section 5-2
• Each slave nodes receives data from the previous node and then sends
data to the next node. Data is thus passed in ascending order of the
nodes participating in the data link.
• One area is selected from the bit-access areas (e.g., CIO Area) or word-
access areas (e.g., DM Area).
• Data link areas are allocated in ascending order of node addresses.
• Data link participation can be specified for each node.
Address N: (100
×
Controller Link Unit number)
When bits 6, 5 and 4 are set to 1, 0 and 1 respectively, automatic setting with
1:N allocation is specified.
Words N+22 through N+25 register nodes that will participate in the data
links. The numbers in the table are the node addresses. The bit status given
for each node address indicates whether the node is to participate in the data
links.
Participate: ON
Not participate: OFF
Note
1.
Set 0 as the values of the reserved areas (N+17 to N+20).
2.
When using automatic data link creation with 1:N allocation, set DM Pa-
rameter Areas N+2 to N+11 (which were previously used for automatic set-
ting with equality layout) to 0.
Setting Range for
Automatic Creation with
1:N Allocation, Chain Type
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
---
---
0
0
---
0
0
0
---
1
0
1
0
0
0
---
Word N
15
8
7
0
N+12
---
N+13
N+14
(1)
N+15
(2)
N+16
(3)
N+17
---
N+18
---
N+19
---
N+20
---
N+21
---
N+22
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
N+23
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
N+24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
N+25
---
---
62
61
60
59
58
57
56
55
54
53
52
51
50
49
(4)
1:N allocation type setting (
Set value 0003=Delivery type
)
Rightmost 4 digits of area start word (BCD)
Area
Number of master common send words (BCD)
Number of receive and send words per node (BCD)
0000 (Reserved area)
0000 (Reserved area)
0000 (Reserved area)
0000 (Reserved area)
First word to store data link status (bit-access area) (BCD)
Leftmost digit of area start word (BCD)
Item
Setting range
Data link mode
Specify automatic data link creation with 1:N allocations.
1:N allocation
Specify
Chain Type
.
Summary of Contents for C200HW-CLK21
Page 3: ...iv ...
Page 9: ...x ...
Page 12: ...xiii TABLE OF CONTENTS Index 367 Revision History 373 ...
Page 13: ...xiv ...
Page 19: ...xx ...
Page 57: ...32 Application Precautions Section 1 5 Example CX Programmer Response Timeout Setting ...
Page 69: ...44 Message Service Procedure Section 2 2 ...
Page 111: ...86 Constructing Networks with Repeater Units Section 3 4 ...
Page 154: ...129 Setting Data Links Section 5 2 Device Information Setting Data Link Tables ...
Page 261: ...236 Response Codes Section 6 7 ...
Page 297: ...272 Message Delay Times Section 8 4 ...
Page 353: ...328 Handling Precautions Section 9 6 ...
Page 364: ...339 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Page 365: ...340 Changing the Data Link Tables with Active Data Links Section 10 2 ...
Page 369: ...344 Standard Models Appendix A ...
Page 391: ...366 Using the Relay Terminal Block Appendix C ...
Page 397: ...372 Index ...
Page 401: ...376 Revision History ...