ProSoft Technology MVI56-103M - Manual (Page 107)

MVI56-103M ♦ ControlLogix Platform Reference
IEC 60870-5-103 Master Communication Module User Manual
ProSoft Technology, Inc. Page 107 of 152
February 22, 2013
5.4.3 Event Message Block (9903)
Block identification code 9903 sends event messages received on the Master
port to the processor.
Note: Events are recognized when using a COT = Spontaneous.
Word Offset in
Block Data Field(s) Description
0 Reserved
1 Block ID This is the next block requested by the module.
2 Event Count This field contains the number of events present in the block.
Values of 1 to 20 are valid.
3 to 12 Event 1 Event message
13 to 22 Event 2 Event message
23 to 32 Event 3 Event message
33 to 42 Event 4 Event message
43 to 52 Event 5 Event message
53 to 62 Event 6 Event message
63 to 72 Event 7 Event message
73 to 82 Event 8 Event message
83 to 92 Event 9 Event message
93 to 102 Event 10 Event message
103 to 112 Event 11 Event message
113 to 122 Event 12 Event message
123 to 132 Event 13 Event message
133 to 142 Event 14 Event message
143 to 152 Event 15 Event message
153 to 162 Event 16 Event message
163 to 172 Event 17 Event message
173 to 182 Event 18 Event message
183 to 192 Event 19 Event message
193 to 202 Event 20 Event message
203 to 248 Spare Not Used
249 Block ID This field contains the block identification code of 9903 for the
block.