Spc3 profibus interface center – Siemens SPC3 User Manual
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)