Siemens SPC3 - Page 23

SPC3 PROFIBUS Interface Center
SPC3 Hardware Description V1.3 Page 21
Copyright (C) Siemens AG 2003 All rights reserved. 2003/04
Bit 0 Offline/Passive-Idle
Offline-/Passive-Idle state
0 = SPC3 is in offline.
1 = SPC3 is in passive idle.
Bit 1 FDL_IND_ST
FDL indication is temporarily buffered.
0 = No FDL indication is temporarily buffered.
1 = No FDL indication is temporarily buffered.
Bit 2 Diag_Flag
Status diagnostics buffer
0 = The DP master fetches the diagnostics buffer.
1 = The DP master has not yet fetched the diagnostics buffer.
Bit 3 RAM Access Violation
Memory access > 1.5kByte
0 = No address violation
1 = For addresses > 1536 bytes, 1024 is subtracted from the current address,
and there is access to this new address.
Bits
4,5
DP-State 1..0
DP-State Machine state
00 =
’Wait_Prm’ state
01= ’Wait_Cfg’ state
10 =
’DATA_EX’ state
11= Not possible
Bits
6,7
WD-State 1..0
Watchdog-State-Machine state
00 =
’Baud_Search’ state
01= ’Baud_Control’ state
10 =
’DP_Control’ state
11= Not possible
Bits
8,9
Baud rate 3..0 :
10,11 The baud rates SPC3 found
0000 = 12 MBaud
0001 = 6 MBaud
0010 = 3 MBaud
0011 = 1.5 MBaud
0100 = 500 kBaud
0101 = 187.5 kBaud
0110 = 93.75 kBaud
0111 = 45.45 kBaud
1000 = 19.2 kBaud
1001 = 9.6 kBaud
Rest = Not possible
Bit 12 SPC3-Release 3..0 :
13,14, Release no. for SPC3
15 0000 = Release 0
Rest = Not possible
Figure 5.3: Status Register Bit15 .. 0.(readable)