Siemens SPC3 Hardware Description page 20

PROFIBUS Interface Center
Bit 0 DIS_START_CONTROL
Monitoring the following start bit in UART. Set-Param Telegram overwrites this memory cell in
the DP mode. (Refer to the user-specific data.)
0 =
1 =
Bit 1 DIS_STOP_CONTROL
Stop bit monitoring in UART. Set-Param telegram overwrites this memory cell in the DP mode.
(Refer to the user-specific data.)
0 =
1 =
Bit 2 EN_FDL_DDB
Reserved
0 =
Bit 3 MinTSDR
Default setting for the MinTSDR after reset for DP operation or combi operation
0 =
1 =
Bit 4 INT_POL
Polarity of the interrupt output
0 =
1 =
Bit 5 EARLY_RDY
Moved up ready signal
0 =
1 =
Bit 6 Sync_Supported
Sync_Mode support
0 =
1 =
Bit 7 Freeze_Supported
Freeze_Mode support
0 =
1 =
Bit 8 DP_MODE
DP_Mode enable
0 =
1 =
Bit 9 EOI_Time base
Time base for the end of interrupt pulse
0 =
1 =
Bit 10 User_Time base
Time base for the cyclical User_Time_Clock-Interrupt
0 =
1 =
Bit 11 WD_Test
Test mode for the Watchdog-Timer, no function mode
0 =
1 =
Bit 12 Spec_Prm_Puf_Mode
Special parameter buffer
0 =
1 =
Bit 13 Spec_Clear_Mode
Special Clear Mode (Fail Safe Mode)
0 =
1 =
Figure 5.1: Mode-Register 0 Bit 12 .. 0.(can be written to, can be changed in offline only)
Page 18
2003/04
Monitoring the following start bit is enabled.
Monitoring the following start bit is switched off.
Stop bit monitoring is enabled.
Stop bit monitoring is switched off.
The FDL_DDB receive is disabled.
Pure DP operation (default configuration!)
Combi operation
The interrupt output is low-active.
The interrupt output is high-active.
Ready is generated when the data are valid (read) or when the data are accepted
(write).
Ready is moved up by one clock pulse.
Sync_Mode is not supported.
Sync_Mode is supported.
Freeze_Mode is not supported.
Freeze_Mode is supported.
DP_Mode is disabled.
DP_Mode is enabled. SPC3 sets up all DP_SAPs.
The interrupt inactive time is at least 1 usec long.
The interrupt inactive time is at least 1 ms long.
The User_Time_Clock-Interrupt occurs every 1 ms.
The User_Time_Clock-Interrupt occurs every 10 ms.
The WD runs in the function mode.
Not permitted
No special parameter buffer.
Special parameter buffer mode .Parameterization data will be stored directly in the
special parameter buffer.
No special clear mode.
Special clear mode. SPC3 will accept datea telegramms with data unit = 0.
V1.3
SPC3
SPC3 Hardware Description
Copyright (C) Siemens AG 2003. All rights reserved.