4 Data Descriptions
11.03
4.1 Machine data
© Siemens AG 2003 All Rights Reserved
4-236
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
36986
MD number
$MA_SAFE_PULSE_ENABLE_OUTPUT
Output assignment, enable pulses
840D
Default: 0
Min. input value: 0
Max. input value: -
Change becomes effective after POWER ON:
Protection level (R/W) 7/2
Unit: -
Data type: DWORD
Applies from SW 3.4
Meaning
The output assignment for the pulses is enabled using this data.
Structure: Refer to coding of output assignment
Signal means
= 0
Request for pulse cancellation
= 1
Request for pulse enable
Special cases, errors
•
If a single output signal is connected to a terminal, the following applies:
If MD bit 31 is set, then the signal is processed inverted (ss = 81)
•
If several output signals are connected to the same terminal, the following applies:
If MD bit 31 is set (ss = 81), the relevant signal is initially inverted.
The (in some cases inverted) output signals are then ANDed and the result output at
the terminal.
•
Bit 30 has the following special meaning
If bit 30 is set to 1, the internal pulse cancellation via the drive bus is used (only
permissible for 611 digital Performance 2 modules). In this case, the MDs for
external pulse enabling must also be parameterized as an additional safety measure
in the event that the internal pulse cancellation fails
($MA_SAFE_EXT_PULSE_ENABLE_OUTPUT and
$MA_SAFE_STOP_REQUEST_EXT_INPUT)
Possible values of i:
Value
Meaning
0
The SGA "enable pulses" is output at the parameterized interface
(SPL or periphery).
4
The pulses are internally cancelled via the drive bus.
The SGA "enable pulses" contains the same information and is
output
at the parameterized interface (SPL or periphery). This SGA is not
transferred if mm, xx and nn=0.
8
The SGA "enable pulses" is output inverted at the parameterized
interface.
12 (=0CH)
The pulses are cancelled internally via the drive bus. The SGA
"enable pulses" contains the same information
and is output inverted at the parameterized interface
(SPL or periphery).
36987
MD number
$MA_SAFE_REFP_STATUS_OUTPUT
Output assignment "axis safely referenced"
840D
Default: 0
Min. input value: 0
Max. input value: -
Change becomes effective after POWER ON:
Protection level (R/W) 7/2
Unit: -
Data type: DWORD
Applies from SW 3.4
Meaning
This data specifies the output for the "axis safely referenced" signal.
Structure: Refer to coding of output assignment
Signal means
= 0
Axis is not safely referenced
(i.e. the SE is de-activated)
= 1
Axis is safely referenced
Special cases, errors
•
If a single output signal is connected to a terminal, the following applies:
If MD bit 31 is set, then the signal is processed inverted (ss = 81)
•
If several output signals are connected to the same terminal, the following applies:
If MD bit 31 is set (ss = 81), the relevant signal is initially inverted.
The (in some cases inverted) output signals are then ANDed and the result output at
the terminal.
Further references
MD 36980: $MA_SAFE_SVSS_STATUS_OUTPUT
