Rockwell Automation AutoMax ControlNet Communication Interface Module - Manual (Page 67)

AutoMax ControlNet Module Page 67
Publication number DSMBCN-UM001B-EN-P February 2003
Active Node List
The MBCN maintains a list of active nodes on the network in the
ActNodeTable table, registers 9248-9263, one bit per node. The low bit
of register 9248 corresponds to node 0, and so on.
The bit is set if the node is transmitting frames on the network. It is
cleared if a node misses the opportunity to send 10 times in a row.
The following table shows the locations of the bytes for each node in the
active node list. For example, the entry for node 4 is 9248/4, indicating
that the bit for node 4 is bit 4 of register 9248.
0 1 2 3 4 5 6 7 8 9
0 9248/0 9248/1 9248/2 9248/3 9248/4 9248/5 9248/6 9248/7 9248/8 9248/9
10 9248/10 9248/11 9248/12 9248/13 9248/14 9248/15 9249/0 9249/1 9249/2 9249/3
20 9249/4 9249/5 9249/6 9249/7 9249/8 9249/9 9249/10 9249/11 9249/12 9249/13
30 9249/14 9249/15 9250/0 9250/1 9250/2 9250/3 9250/4 9250/5 9250/6 9250/7
40 9250/8 9250/9 9250/10 9250/11 9250/12 9250/13 9250/14 9250/15 9251/0 9251/1
50 9251/2 9251/3 9251/4 9251/5 9251/6 9251/7 9251/8 9251/9 9251/10 9251/11
60 9251/12 9251/13 9251/14 9251/15 9252/0 9252/1 9252/2 9252/3 9252/4 9252/5
70 9252/6 9252/7 9252/8 9252/9 9252/10 9252/11 9252/12 9252/13 9252/14 9252/15
80 9253/0 9253/1 9253/2 9253/3 9253/4 9253/5 9253/6 9253/7 9253/8 9253/9
90 9253/10 9253/11 9253/12 9253/13 9253/14 9253/15 9253/0 9253/1 9253/2 9253/3
Figure 27 Active Node Table