Siemens Sinumerik 840DiE sl - Data Descriptions (MD, System Variable)

01/2007
18.2 Expanded message frame configuration/evaluation of internal drive variables
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© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
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Warning
For system purposes, the consistency check, which is performed when the
SINUMERIK 840Di sl boots and which is based on acyclic communication with
the drive, is performed in conjunction with the cyclical communication – which
is already active – between NCK and drive.
As setpoint and actual values are already being exchanged between the NCK
position control and drive as part of the cyclic communication, uncontrolled
system states can occur on the part of the drive due to faulty process data
configurations which cannot be detected yet at this point in time.
The same applies if acyclic communication is not supported by a drive, or if
acyclic communication was deactivated for a drive via the axis–specific NC
machine data:
S MD13070: $MN_DRIVE_FUNCTION_MASK[n] (used DP functions)
and therefore it is not possible for the NCK to perform a consistency check.
Therefore, the responsibility lies with the commissioning engineer to implement
suitable measures to avoid uncontrolled traversing of the drives during
start–up, caused by inconsistencies in the above mentioned data.
An error can present a risk of danger to person or machine.
18.2.7 Data descriptions (MD, system variable)
General machine data
13070 DRIVE_FUNCTION_MASK
MD number Bit–coded screen for selecting the functional scope expected by the NCK with PROFIBUS
drives
Default setting: 0 Min. input limit: 0 Maximum input limit: FFFF FFFF
Changes effective after POWER ON Protection level: 2/7 Units: –
Data type: DWORD Applies from SW version: 2.1
Significance: Meaning of set bits:
Bit 0: Deactivation of the 611U–specific drive alarm mapping
Bit 1: Deactivation of the 611U–specific drive type detection
Bit 2: Deactivation of the 611U–specific parameter accesses encoder drivers
Bit 3: Deactivation of the 611U–specific parameter accesses output drivers
Bit 4: Activation third–party drive: DSC bits (STW1.12/STA1.12)
Bit 5: Deactivation of the 611U–specific drive parking (STW2.7/STA2.7)
Bit 6: Deactivation of the 611U–specific travel to fixed stop (STW2.8/STA2.8)
Bit 7: Deactivation of the 611U–specific internal motor switchover (STA2.9–11)
Bit 8: Deactivation of the 611U–specific ramp block (STW1.13)
Bit 9: Deactivation of the 611U–specific function generator functions (STW1.8/STA1.13)
Bit 14: Selection of non–cyclic DP communication: 0=DPT; 1=DPV1
Bit 15: Deactivation of consistency check for PROFIBUS message frame configuration
CTW: Control word (PDA word in the PROFIDrive message frame to DP slave)
STW: Status word (PDA word in the PROFIDrive message frame from DP slave)
PDA: Process data
MD irrelevant for ... –––
18 840Di–s
p
ecific Data and Functions