Read node link, Example – Rockwell Automation 1336T Function Block Prog. Manual, Series A/B User Manual
Page 160

5–44
Block Transfer Services
1336 FORCE — 5.9 August 1995
Example
In both examples, the PLC has requested to read node number 3
Dec
(3
Hex
), block ID number 4
Dec
(4
Hex
).
In Example 1, the drive response indicates that the node is linked to
parameter 146
Dec
(92
Hex
), the Motor Overload Limit parameter.
1
0
N10:10
2
3
4
5
6
7
8
9
N10:90
BTW
Data File
BTR
Data File
Data Format
8304
8304
92
0
0
0F04
0F04
Example 1
This example can be visually shown as follows:
p.146
node 0
ID = 4
node 1
node 2
node 3
(8304)
Destination
Source
In Example 2, the drive response indicates that the node is linked to
another function block node: node number 2
Dec
(2
Hex
), block ID
number 9
Dec
(9
Hex
).
1
0
N10:10
2
3
4
5
6
7
8
9
BTW
Data File
Data Format
8304
0
0F04
N10:90
BTR
Data File
8304
8209
0
0F04
Example 2
The second example can be visually shown as follows:
node 0
ID = 9
node 1
node 2
(8209)
node 0
ID = 4
node 1
node 2
node 3
(8304)
Source
Destination
Read Node Link
(continued)