ProSoft Technology PTQ-101M - Manual (Page 136)

PTQ-101M ♦ Quantum Platform Reference
IEC 60870-5-101 Master Communication Module
Page 136 of 181 ProSoft Technology, Inc.
May 14, 2008
Block Format from Module (3x Register Data)
Word Offset in Block Data Field(s) Description
0 Sequence
Counter This field contains a new value each time the block is
handled.
1 Block ID This field contains the block identification code of
9902 for the block.
Event Message Block (9903)
Block identification code 9903 is used to request event messages received on
the master port for the processor.
Block Format from Processor (4x Register Data)
Word Offset in Block Data Field(s) Description
0 Sequence
Counter This field contains a new value each time the user
wishes to request a new command block.
1 Block ID This field contains the value of 9903 to request event
data
2 to 63 Spare Not used
Block Format from Module (3x Register Data)
Word Offset in Block Data Field(s) Description
0 Sequence
Counter This field contains a new value each time the block is
handled.
1 Block ID This field contains the block identification code of
9903 for the block.
2 Event Count This field contains the number of events present in the
block. Values of 1 to 4 are valid.
3-16 Event 1 Event message
17-30 Event 2 Event message
31-44 Event 3 Event message
45-58 Event 4 Event message
59-61 Spare Not used
62 Event count in
queue Number of events in queue still waiting to send
63 Event Overflow Event buffer overflow
The format of each 14 word data region in the block is as follows:
Word Offset Definitions Description
0 Session Index This field contains the session index used to define
the controlled unit in the module from which the event
was generated.
1 Sector Index This field contains the sector index used to define the
database within the controlled unit from which the
event was generated.