Nck-Md That Are Read From Safety Integrated; Drive Parameters That Are Read From The Nck-Si - Siemens SINUMERIK 840D sl Function Manual

9.3

NCK-MD that are read from Safety Integrated

The safety software reads the following NCK machine data. To a large extent, these machine
data are not calculated into the checksums, as they do not have any direct safety-relevant
significance, or as a consequence of changing this data, the safety-relevant data is changed,
which in turn, is calculated into the checksum.
MD MD identifier
num‐
ber
10050 SYSCLOCK_CYCLE_TIME
10060 POSCTRL_SYSCLOCK_TIME_RATIO
10070 IPO_SYSCLOCK_TIME_RATIO
30100 CTRLOUT_SEGMENT_NR
36906 CTRLOUT_MODULE_NR
30130 CTRLOUT_TYPE
10200 INT_INCR_PER_MM
10210 INT_INCR_PER_DEG
30300 IS_ROT_AX
30230 ENC_INPUT_NR
30240 ENC_TYPE
34210 ENC_REFP_STATE
30330 MODULO_RANGE
10360 FASTIO_DIG_NUM_OUTPUTS
10071 IPO_CYCLE_TIME
11500 PREVENT_SYNACT_LOCK
9.4

Drive parameters that are read from the NCK-SI

The following drive parameters are read when the control boots to protect the drive
parameterization, relevant for the safety functions, from being changed.
Parameter No.
p2003
r0979[1, 11, 21]
1) 4)
r0979[2, 12, 22]
1), 4), 5)
r0979[3, 13, 23]
1) 4), 5)
r9744
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Meaning
Reference torque
Encoder type
Encoder resolution
Shift factor XIST1
Message buffer changes counter
9.4 Drive parameters that are read from the NCK-SI
to determine the monitoring clock cycle;
as time basis for position controller based monitoring times
to distribute the SI monitoring channels to various position control clock
cycles
as time basis for IPO-based monitoring times
Defines as to whether a PROFIdrive drive is involved.
to determine access to the interface to the DRV;
is used to determine the drive module type
to protect against parameterizing errors
to convert the reference position from the NCK into the SI computation
format (linear axes)
to convert the reference position from the NCK into the SI computation
format (rotary axes/spindles)
for a plausibility check, rotary axis setting
from which encoder data is read using drive parameter r0979
to protect against inadmissible measuring functions
to protect against inadmissible measuring functions
for plausibility check, modulo values
determines double assignment of IO modules
time basis for IPO-based monitoring times
SPL protection
Stored in the NCK-MD
SAFE_BRAKETEST_TOR‐
QUE_NORM
SAFE_ENC_IS_LINEAR
SAFE_ENC_GRID_POINT_DIS
T
SAFE_ENC_RESOL
SAFE_ENC_PULSE_SHIFT
-
3)
Data descriptions
Use
Alarm when changing the
MD value
27039
27036
27036
2)
27036
-
473