ProSoft Technology PTQ-104C - Manual (Page 48)

Module Configuration 49TPTQ-104C ♦ 48TQuantum Platform
12TUser Manual 47TIEC 60870-5-104 Client
Type ID Type Description Data representation
111 P_ME_NB_1 Parameter, scaled measured value Word address
112 P_ME_NC_1 Parameter, short float value Double-word address
113 P_AC_NA_1 Parameter activation command NA
The data addressing is resumed in the following table.
Data Size Example
Single Point 1 bit Address 1600 refers to word 100, bit 1 in database
Dual Point 2 bits Address 1600 refers to word 100, bits 1 and 2 in database
Step Point 1 byte Address 200 refers to word 100, lower byte in database
Bitstring 32 bit 2 words Address 50 refers to word 100 and 101 in database
Normalized Measured Value 1 word Address 100 refers to word 100 in database
Scaled Measured Value 1 word Address 100 refers to word 100 in database
Short Float Point Measured Value 2 words Address 50 refers to words 100 and 101 in database
Integrated Total Point 2 words Address 50 refers to words 100 and 101 in database
Another important concept to understand is the direction of data transfer for the
different data types with reference to the controller. The following illustration
shows the data types (monitored data) that are transferred from the module to
the processor.
The next diagram shows the movement of control data from the processor to the
module. This data is then sent to the controlled devices on the serial networks.
Write Data Output Data Types
C_SC_NA_1
C_DC_NA_1
C_RC_NA_1
C_SE_NA_1
C_SE_NB_1
C_SE_NC_1
C_BO_NA_1
Page 48 of 136 ProSoft Technology, Inc.
March 4, 2013