ProSoft Technology MVI69-103M - Manual (Page 77)

Reference MVI69-103M ♦ CompactLogix or MicroLogix Platform
IEC 60870-5-103 Master Communication Module
ProSoft Technology, Inc. Page 77 of 131
November 3, 2008
Data Type Address Type Length Example
9 Word 5 words Address 100 refers to 9 consecutive words starting
at word 100.
20 Bit 2 bits Address 160 refers to the first and second bits
from word 10.
Therefore, address 16000 represents bit zero in word 1000 of the module's
database. Short floating-point, 32-bit strings and integrated total values each
occupy a double-word space in the database. Therefore, short float database
address of 100 represents the two words, 200 and 201, in the modules database.
Identification objects are stored as byte values in the modules database.
Identification object address 1000 is stored in the module's database in word
addresses 500 to 505.
When setting the monitored data and commands, each point is defined by its
ASDU type, function code, and information number. Valid function codes are
listed in the following table.
Function Code Symbol Number
Distance Protection T(z) 128
Over-current Protection I>> 160
Transformer Differential
Protection rIt 176
Line Differential Protection rIl 192
Global Function Type GLB 255
Refer to Protocol Interoperability Documentation for a full listing of the protocol
support offered by the module.
As blocks are transferred between the module and the processor, each block
contains block identification codes that define the content or function of the block
of data transferred. The block identification codes used by the module are
displayed in the following table.
Block Range Descriptions
-1 Null block
0 Null block
1 to 20 Read or write data
9901 User Constructed Command
9902 Command Control Block (Add command to Command List Queue)
9903 Event Messages from Master port
9950 Command List Error data
9970 Set PLC time using module's time
9971 Set module's time using CompactLogix or MicroLogix time
9998 Warm Boot Request from CompactLogix or MicroLogix (Block contains no
data)
9999 Cold Boot Request from CompactLogix or MicroLogix (Block contains no
data)