Siemens SINUMERIK 840D sl Function Manual page 364

Data descriptions
9.1 Machine data for SINUMERIK 840D sl
36937
Data type: DOUBLE
Meaning:
corresponds with ...
Additional reference
36938
MD number
Default value: 100, 101, ... , 114; 200,
201, ..., 214
Change becomes effective after: POWER ON
Data type: DWORD
Meaning:
364
$MA_SAFE_CAM_POS_MINUS[0...29]
This MD specifies the minus cam position for Safe Cams SN1-, SN2-, SN3-, ...
For the "Safe Cams" function, the following applies:
If the actual position is greater than this value when the Safe Cam function is active (MD36901
$MA_SAFE_FUNCTION_ENABLE), then the appropriate safety-relevant output signal (SGA)
is set to 1.
If the actual position falls below this value, SGA is set to 0.
n = 0, 1, 2, 3 stand for the minus cam position of SN1-, SN2-, SN3-, SN4-
For the "Safe Cam Track" function, the following applies:
If the "Safe Cam Track" function is enabled (MD36903 $MA_SAFE_CAM_ENABLE), then the
safety-related output signals "cam track" and "cam range" are set corresponding to the pa‐
rameterization in MD36938 $MA_SAFE_CAM_TRACK_ASSIGN[n].
n = 0 ... 29 stand for the plus cam position of SN1-, ..., SN30-
MD36901 $MA_SAFE_CAM_RANGE_OUTPUT_1[n]
MD36903 $MA_SAFE_CAM_ENABLE
MD36936 $MA_SAFE_CAM_POS_PLUS[n]
MD36938 $MA_SAFE_CAM_TRACK_ASSIGN[n]
MD36989 $MA_SAFE_CAM_MINUS_OUTPUT[n]
MD37900 $MA_SAFE_CAM_TRACK_OUTPUT[n]
MD37901/37902/37903/37904 $MA_SAFE_CAM_RANGE_OUTPUT_1/2/3/4[n]
MD37906/37907/37908/37909 $MA_SAFE_CAM_RANGE_BIN_OUTPUT_1/2/3/4[n]
/FBSIsl/ see Chapter "Safety software cams and safety cam track (SN) (Page 157)"
$MA_SAFE_CAM_TRACK_ASSIGN[0...29]
Cam track assignment
Min. input limit: 100
Assigns the individual cams to a maximum of 4 cam tracks including defining the numerical
value for the SGA "cam range".
The "hundreds" position defines which cam track is assigned to the cams. Valid values are 1,
2 or 3 or 4.
The "tens" and "ones" positions contain the numerical value that should be signaled to the
safe logic as SGA "cam range" and processed there. Valid values are 0 to 14, whereby each
numerical value may only be used once for each cam.
Therefore the valid value range of this machine data is:
100...114, 200...214, 300...314, 400...414
Examples:
MD36938[0] = 207: Cam 1 (index 0) is assigned to cam track 2. If the position is in the range
of this cam, then 7 is entered in the SGA "cam range" of the 2nd cam track.
MD36938[5] = 100: Cam 6 (index 5) is assigned to cam track 1. If the position is in the range
of this cam, then 0 is entered in the SGA "cam range" of the 1st cam track.
Protection level: 7/2
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Max. input limit: 414
Unit: -
Safety Integrated