User manual

49TPTQ-104C ♦ 48TQuantum Platform Module Configuration
47TIEC 60870-5-104 Client
12TUser Manual
Event Pass-Through Block Format
The block that is copied from the module to the processor has the following
format. Each block can contain up to 4 events. The number of events per block
will typically depend on the rate between how fast the module receives the
events and how fast these can be passed to the processor (typically depends on
the processor scan rate).
Block Format for Read
Block Format from Module (%IW or 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 to 16
Event 1
Event message
17 to 30
Event 2
Event message
31 to 44
Event 3
Event message
45 to 58
Event 4
Event message
59 to 61
Spare
Not used
62
Event count in queue
Number of messages left in event buffer
63
Event Overflow
Event buffer overflow
The format of each 14 word data region in the block is shown in the following
table.
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.
2
COT
This field contains the COT for the event
message received from the IED. If the size of the
COT is a single byte, the originator address will
always be zero. The COT is in the LSB and the
originator address is in the MSB.
3
Reserved
This field is reserved for future use and is added
here to keep the structure double-word aligned
for all platforms.
4 to 5
Point Index
This field contains the point index in the remote
device that generated the event.
6
ASDU Type
This field contains the ASDU type code for the
data contained in the message.
7
Milliseconds and
Seconds
This word contains the seconds and milliseconds
when the event occurred.
8
Minutes and Hours
This field contains the minutes and hours the
event occurred.
ProSoft Technology, Inc. Page 57 of 136
March 4, 2013