ProSoft Technology 5201-DFNT-104C - Manual (Page 29)

104C Version 3 ♦ ProLinx Gateway Configuring the Gateway
IEC 60870-5-104 Client (Firmware v3.xx) Protocol Manual
ProSoft Technology, Inc. Page 29 of 139
August 4, 2011
Database Address
The interpretation for the database address parameter will depend on the
selected data type. The database address value is only significant to the control
data types (single point, double-point, etc…).
Examples:
If you select single point command type the database address is interpreted as a
bit-address. For example, a value of 32 means bit 0 of database word 2.
If you select regulating step point command type the database address is
interpreted as a byte-address. For example, a value of 32 means byte 0 of
database word 16.
If you select measured scaled integer command type the database address is
interpreted as a word-address. For example, a value of 32 means database word
32
If you select measured scaled integer command type the database address is
interpreted as a double-word-address. For example, a value of 32 means
database word 16, For the other command types (clock synchronization, read
command, reset process command and test command) you can use the
database address to trigger the command upon data change. However the value
itself is not used within the command.
FIELD DESCRIPTION
Database
This field specifies the location in the module's internal database to associate with
the command. The data type
Index used in the command determines addressing of the index as follows:
Type Description DB Index type
---- ----------------------------------- -------------------------------
45 Single point Command Bit address
46 Double point Command Bit address
47 Regulating Step point Command Byte address
48 Setpoint, normalized point Command Word address
49 Setpoint, scaled point Command Word address
50 Setpoint, short float point Command Double-word address
51 Bitstring (32-bits) point Command Double-word address
100 Group interrogation command *Word address
101 Counter interrogation command *Word address
102 Read command *Word address
103 Clock synchronization command *Word address
105 Reset process command *Word address
107 Test command (IEC-870-5-104 type) *Word address
110 Parameter, normalized measured value Word address
111 Parameter, scaled measured value Word address
112 Parameter, short float value Float (double-word address)
113 Parameter activation command *Word address
*Word address = Value only used to signal when to send event (Enable Code = 2)