Additional Process Data - Siemens Sinamics S120 Function Manual

Cont rol of the safety functions
5.3 Activation via PROFIsafe
5.3.4.5

Additional process data

S_ SLS_LIMIT_A
● PZD3 in telegrams 901 and 902, output signals
● SLS limit value input
● Value range 1 ... 32767; 32767 ≙ 100% of the 1st SLS level
S_ SLS_LIMIT_A_ACTIVE
● PZD3 in telegrams 901 and 902, input signals
● Active SLS limit value
● Value range 1 ... 32767; 32767 ≙ 100%
● Must only be evaluated if SLS 1 active and p9501.24 = 1.
S_ CYCLE_COUNT
● PZD4 in telegrams 901 and 902, input signals
● Counter for the safety cycle
● Value range -32768 ... +32767
● May only be evaluated if the transfer of safe position values is active (p9501.25 = 1) and
the position value is valid (r9722.22 = r9722.23 = 1).
S_ XIST16
● PZD5 in telegram 901, input signals
● Current actual position value (16 bits)
● Value range ±32767
● Scaling using p9574
Not e
S c aling
It is not permissible that the position value transferred in S_XIST16 exceeds the value
range that can be represented. This is the reason that the safe position value of the drive
(r9713[0]) can be allocated a scaling factor. The position value is divided by this factor
before transfer. As a consequence, a wider value range can be transferred with a
reduced accuracy.
Example: For a position of -29.999 mm signaled in r9708[0] and r9708[1] and a scaling
factor of p9x74 = 1000, a numerical value of -29 is signaled to the controller.
● May only be evaluated if the transfer of safe position values is active (p9501.25 = 1) and
the position value is valid (r9722.22 = r9722.23 = 1).
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Function Manual, (FHS), 07/2016, 6SL3097-4AR00-0BP6
Safety Integrated