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

Page 135

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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

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