Command control block (9902) – ProSoft Technology PTQ-101M User Manual
Page 135

Reference PTQ-101M
♦ Quantum Platform
IEC 60870-5-101 Master Communication Module
ProSoft Technology, Inc.
Page 135 of 181
May 14, 2008
Word Offset in Block
Data Field(s)
Description
51 to 56
Command #9
Data required to build the user defined command in
the command queue.
57 to 62
Command #10
Data required to build the user defined command in
the command queue.
63 Spare
Not
used.
The following fields are used for each 6-word record in the command list:
Word Offset
Definitions
Description
0
Database Index
Address in module to associate with the command
1 Session
Index
Session index defined in the module to associate
with the command.
2
Sector Index
Sector index for session as defined in the module.
3
Data Type
ASDU data type associated with the command.
4 Point
Index
Information object address for the point on which
command operates.
5 Qualifier
Qualifier as defined for the command list. This
parameter is data type dependent.
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
9901 for the block.
2 to 63
Spare
Not used.
Command Control Block (9902)
The block 9902 identification code is used by the PLC to send a list of commands
to be placed in the command queue. Commands placed in the queue with this
method need not have their enable bit set.
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 9902 identifying the
enable command to the module.
2
Command
count
This field contains the number of commands to enable
in the command list. Valid values for this field are 1 to
60.
3 to 62
Command
Numbers to
enable
These 60 words of data contain the command
numbers in the command list to enable. The
commands in the list will be placed in the command
queue for immediate processing by the module. The
first command in the list has an index of 0.
63 Spare
Not
Used