ProSoft Technology MVI69-103M - Manual (Page 83)

Reference MVI69-103M ♦ CompactLogix or MicroLogix Platform
IEC 60870-5-103 Master Communication Module
ProSoft Technology, Inc. Page 83 of 131
November 3, 2008
Word Offset in
Block Data Field(s) Description
2 to 11 Command #1 Data required to build the user defined command in the
command queue.
12 to 21 Command #2 Data required to build the user defined command in the
command queue.
22 to 31 Command #3 Data required to build the user defined command in the
command queue.
32 to 41 Command #4 Data required to build the user defined command in the
command queue.
42 to 51 Command #5 Data required to build the user defined command in the
command queue.
The following fields are used for each 10-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 Function Code Function Code for the command.
5 Point Index *
* Information
Number
Information object address for the point on which the
command operates.
6 Override Flag Override flag for general command.
7 Override Value Override value for general command.
8 Reserved Reserved for future use.
9 Reserved Reserved for future use.
Refer to the command list section of this documentation for a detailed definition
of the fields contained in this block. They are the same as those used in
constructed the commands in the command list.
There is no response block built by the module to send back to the processor
after the block is processed. The commands are placed in the command queue
and issued at a high priority.
This block and block 9902 should be used when controlling double-point data
points in remote units using general commands. This provides complete control
of the slave devices under ladder logic control. Alternatively, the slaves can be
controlled by changing data in the database and having the data be transferred
using pre-constructed commands in the user's command list. Some points only
accept value of on for control (that is, LED reset or activate characteristic). For
these points, block 9901 and 9902 should only be utilized.
Command Control Block (9902)
The block 9902 identification code is used by the processor to send a list of
commands to be placed in the command queue from the user configured
command list. Commands placed in the queue with this method need not have
their enable bit set in the command list.