4 command control block (9902), Command control block (9902) – ProSoft Technology PTQ-104C User Manual
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49TPTQ-104C ♦ 48TQuantum Platform
Module Configuration
47TIEC 60870-5-104 Client
12TUser Manual
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) to Processor
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.
5.3.4 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) to module
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
Block Format from Module (3x Register Data) to Processor
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.
ProSoft Technology, Inc.
Page 55 of 136
March 4, 2013