ProSoft Technology ProTalk PTQ-104C Manual de usuario Pagina 144

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Reference PTQ-104S Rev2 Quantum Platform
User Manual IEC 60870-5-104 Server for Quantum
Page 144 of 195 ProSoft Technology, Inc.
February 22, 2013
Example (C_SC_NA)
In the example above, each time the module receives a command for single-
command point 700, it sends a response containing a monitored single-point
(information object address 100 with the value at database bit-address 1600).
Require Select: This parameter configures the point to require a Select request
before the Operate command.
Control Data Transfer
The control communication typically occurs when the Client sends a command
request to update the module’s command points. The data types addressing are
described in the following table.
Data Type
Data Size
Addressing Type
C_SC_NA
1 bit
Bit
C_DC_NA
2 bits
Bit
C_RC_NA
1 byte
Byte
C_SE_NA
1 word
Word
C_SE_NB
1 word
Word
C_SE_NC
2 words
Word
Some of the command points may be configured to be selected before executed.
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