4 Data Descriptions
11.03
4.1 Machine data
© Siemens AG 2003 All Rights Reserved
4-216
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
36901
MD number
$MA_SAFE_FUNCTION_ENABLE
Enable safety-related functions
840D
Default: 0
Min. input value: 0
Max. input value:
FF 03, FF E3 (from SW4.2)
Change becomes effective after POWER ON:
Protection level (R/W) 7/2
Unit: Hexadecimal
Data type: DWORD
Applies from SW 3.4
Meaning
The functions for safe operation can be enabled for one axis/spindle with this data.
It is only possible to enable - on an axis-specific basis - as many axes/spindles for safe
operation as have been enabled by the global option.
If one of the bits from bit 1 is set, then bit 0 must also be set. This is because for a STOP
C, D, E the control switches into the safe operating stop. This condition is checked (if
there is an error, configuration Alarm 27033 is output).
The more partial functions that are set, then the more computing time the safe functions
require.
High byte
Bit 15
Bit 14
Bit 13
Bit 12
Bit 11
Bit 19
Bit 9
Bit 8
Enable safe cams
SN4 -
SN4 +
SN3 -
SN3 +
SN2 -
SN2 +
SN1 -
SN1 +
Low byte
Bit7
Bit6
Bit5
Bit4
Bit 3
Bit 2
Bit 1
Bit 0
Enable (from SW4.2)
SW 6.3
From
SW 5.2
Reserve
d
Enable
Cam
synchron
ization
External
STOPs
Override
for
safely-
reduced
speed
Enable
external
ESR
activatio
n
Enable
act.
value
synchr.
2nd
encoder
system
0 SE
SBH/
SG
Special cases, errors
If bit 1 or a higher bit is set, then bit 0 must also be set since the control system switches
to a safe operational stop in response to STOP C, D or E (a configuration alarm is output
if an error is detected).
If an insufficient number of axes/spindles have been enabled for safe operation using the
global option, then this data may be overwritten with the value 0000 during run-up
Corresponds with …
Global option
References
Refer to Chapter 2, "Enabling safety-related functions"