Siemens Sinumerik 840D sl Function Manual page 300

Sinumerik safety integrated

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Connecting Sensors/Actuators

7.5 Safe programmable logic (SPL)

To be able to start the NCK--SPL without any errors, according to the required SPL

start type (start via PROG_EVENT or automatic start), when booting, the following

machine data must be taken into account:

MD20106 $MC_PROG_EVENT_IGN_SINGLE_BLOCK, bit 3 or bit 5

MD20107 $MC_PROG_EVENT_IGN_INHIBIT, bit 3 or bit 5

In addition, it may be necessary to not display the processing of the event--con-

trolled programs via MD20192 $MC_PROG_EVENT_IGN_PROG_STATE, bit 3 or

bit 5 on the OPI interface. This does not influence executing the NCK--SPL, and is

only used to visualize program execution in the HMI context

Starting the PLC- -SPL

The PLC--SPL in conjunction with FB4/FC9 has started if the FC9 has signaled

successful execution and has displayed that the end of SAFE.SPF has been

reached. This is displayed using a signal in SAFE.SPF (e.g. $A_PLCSIOUT

variable, M function) or SPL status bit 13 (DB18.DBX137.5). Only then may the

PLC--SPL be started to ensure that both SPLs run in synchronism and therefore

the axis--specific monitoring channels are synchronously supplied.

Parameterizing FB4

FB4 may only be started in the cyclic mode (OB 1).

[Values in brackets are standard values required for the call]

SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition

Parameterizing FB 4

'/_N_CST_DIR/'

'_N_SAFE_SPF'

Assign interrupt

Interrupt number

NCK--SPL path name

NCK--SPL program name

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Sinamics s120