Profibus Dp - Siemens SINUMERIK 840Di Manual

06.03
10.8

PROFIBUS DP

10.8.1 Setting the parameters for the shut-down behavior
10.8.2 Data descriptions (MD)
General
machine data
11250
MD number
Default settings: 0
Changes valid after RESET
Data type: UINT8
Meaning:
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
If specific DP slaves react to an abrupt shut-down of PROFIBUS DP commu-
nication with error states, e.g. in response to on a power ON NC reset (warm
restart), machine data:
S
MD11250 PROFIBUS_SHUTDOWN_TYPE (PROFIBUS shutdown han-
dling)
can be used to configure the staged shut-down of PROFIBUS DP communica-
tion.
Note
The drives available for SINUMERIK 840Di:
– SIMODRIVE 611U / UE
– SIMODRIVE POSMO SI / CD / CA
can be operated by default with mode 0 (abrupt shut-down of PROFIBUS DP
communication). This corresponds to the initialized default setting of the ma-
chine data (see Subsection 10.8.2, page 10-393).
PROFIBUS_SHUTDOWN_TYPE
PROFIBUS shutdown handling
min. input limit: 0
Protection level: 2 / 7
Shut-down modes of PROFIBUS DP communication:
0 = PROFIBUS DP communication is shut down at the DP master end without any
warning.
1 = PROFIBUS DP is switched to CLEAR mode for at least 20 clock cycles.
PROFIBUS DP communication is then shut down.
If it is not possible to switch the PROFIBUS DP to CLEAR mode, the
procedure described in step 2 is followed.
To be used for: SINUMERIK 840D with DP-Link module.
2 = Null vales are transmitted for at least 20 clock cycles for all DP slave drives
connected to PROFIBUS DP for the following frame data:
– Control word 1
– Control word 2
PROFIBUS DP communication is then shut down.
To be used for: SINUMERIK 840Di with PLC 315-2DP, 314-2C, 317-2DP.
10 NC Start-Up with HMI Advanced
10.8 PROFIBUS DP
max. input limit: 2
Unit: –
valid from SW: 2.2
10-393