ProSoft Technology MVI69-101S - Manual (Page 102)

MVI69-101S ♦ CompactLogix or MicroLogix Platform Reference
IEC 60870-5-101 Slave Communication Module
Page 102 of 149 ProSoft Technology, Inc.
March 16, 2009
The following illustration shows the communication procedure for balanced
mode:
Therefore, the point configured for a cyclic poll is periodically reported to the
master.
You may also create groups of points allowing the master to poll certain points
more frequently than other points. The master may send requests for different
groups as follows:
General Interrogation (station)
General Interrogation for Group 1
General Interrogation for Group 2
…
General Interrogation for Group 16
Example - General Interrogation
If the following points are configured for General Interrogation:
If you configure the following data points:
[M_SP_NA_1]
# Point # DB Address Group(s) IV DB Bit
# ------- ---------- -------- ---------
START
100 1600 00000002 0 # Group 1 Interrogation
101 1601 00000002 0 # Group 1 Interrogation
102 1602 00000004 0 # Group 2 Interrogation
END