Example, Scattered parameter link write – Rockwell Automation 1336T PLC Comm. Adapter, Series B, FRN 2.xx-3.xx User Manual
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7–38
Publication 1336 FORCE–5.13 –– September, 1998
The links are then defined, followed by each sink’s corresponding
source in the remainder of the header message. You can define up to
30 scattered links with this function. If an incorrect link is defined,
the BTR response returns a negative value for the sink parameter,
followed by a status or error code.
If there is an error in the block transfer, word 2 of the BTR contains
a value of -32763.
Example
In this example, four scattered links were written to the drive as
defined in word 3 of the BTW. Words 4 and 5 (N10:3 and N10:4)
contain the first link with word 4 defining the sink parameter, and
word 5 the corresponding source. Words 6 and 7 (N10:5 and N10:6)
contain the next link, in the order of sink-to-source. The remaining
two links are contained in words 8 through 11 (N10:7-10). The BTR
responds with 0 in place of the source parameter to indicate a
successful link.
1
0
N10:0
2
3
4
5
6
7
8
9
N10:20
BTW
Data File
Data Format
4
387
11
331
-32763
146
388
168
367
330
368
N10:90
N10:100
BTR
Data File
4
387
0
0
5
0
388
0
367
0
368
Scattered Parameter Link Write
(continued)