ProSoft Technology 5201-MNET-101S - Manual (Page 93)

IEC-101 Slave ♦ ProLinx Communication Gateway Reference
IEC 60870-5-101 v3 Slave (Firmware version 3.xx) Protocol Manual
ProSoft Technology, Inc. Page 93 of 159
August 6, 2010
Control Points Addressing
Control points must be configured in a database area that is updated in the
gateway. You must associate each point to a database address in the 101S
gateway. The interpretation of the DB Address parameter in the configuration
tables depends on the point type configured and the type of addressing
associated with that point type.
ASDU Type Data Size Addressing Type
C_SC_NA 1 bit Bit
C_DC_NA 2 bits Bit
C_RC_NA 1 byte Byte
C_BO_NA 2 words Double word
C_SE_NA 1 word Word
C_SE_NB 1 word Word
C_SE_NC 2 words Double word