ProSoft Technology 5105-103M-PDPS - Manual (Page 44)

Start Here 5105-103M-PDPS ♦ ProLinx Gateway
User Manual IEC 60870-5-103 Master to PROFIBUS Slave Gateway
Page 44 of 144 ProSoft Technology, Inc.
November 24, 2010
Parameter Data Structure
SPC3 evaluates the first seven data bytes (without user prm data), or the first
eight data bytes (with user prm data). The first seven bytes are specified
according to the standard. The eighth byte is used for SPC3-specific
communications. The additional bytes are available to the application.
Byte Bit Position Designation
7 6 5 4 3 2 1 0
0 Lock
Reg Unio
Req Sync
Req Free
Req WD on Res Res Res Station status
1 WD_Fact_1
2 WD_Fact_2
3 MinTSDR
4 Ident_Number_High
5 Ident_Number_Low
6 Group_Ident
7 Spec_User_Prm_Byte
8 to 243 User_Prm_Data
Byte 7 Spec_User_Prm_Byte
Bit Name Significance Default State
0 Dis_Startbit The start bit monitoring in the receiver
is switched off with this bit Dis_Startbit = 1,
That is, start bit monitoring is disabled.
1 Dis_Stopbit Stop bit monitoring in the receiver is
switched off with this bit Dis_Stopbit = 0
That is, stop bit monitoring is enabled
2 WD_Base This bit specifies the time base used to
clock the watchdog.
WD_Base = 0: time base 10 ms
WD_Base = 1: time base 1 ms WD_Base = 0
That is, the time base is 10 ms.
3 to 4 Res To be parameterized with 0 0
5 Publisher_Enable DXB-publisher-functionality of the
SPC3 is activated with this bit Publisher_Enable = 0, DXB-request-
telegrams are ignored;
Publisher_Enable = 1, DXB-request-
telegram are processed
6 to 7 Res To be parameterized with 0 0