Behavior After Power On / Mode Change / Reset; Spl Data On The Plc Side - Siemens Sinumerik 840D sl Function Manual

Sinumerik safety integrated

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Behavior after power on / mode change / reset

1. After the system has booted, the following Safety Integrated system variables

are assigned the value zero:

$A_INSE(D), not for F_DP communication

$A_OUTSE(D),

$A_OUTSI(D),

$A_MARKERSI(D),

$A_INSEP(D), not for F_DP communication

$A_OUTSEP(D),

$A_OUTSIP(D),

$A_MARKERSIP(D)

2. Preassignment of other variables before cyclic processing of the NCK--SPL

starts can be programmed in the same part program as the NCK--SPL itself.

To ensure that the pre--assignment instructions are only performed once, they

must use the following syntax:

As a result of the identifier IDS, the events "operating mode change" and "reset"

have no effect on the processing of the NCK--SPL.

3. Several boot instructions can be programmed in one block.

4. For the relevant FDP system variables, see Chapter 7.4.8 "Boot behavior of the

F_DP communication" and the following.

The safe programmable logic of the PLC (PLC--SPL) is a sub--function of the

safety functions integrated in the SINUMERIK.

The PLC--SPL signals are in DB18 and are sub--divided into

1. Parameterization part, and

2. Data area/status.

Parameterization part

The SPL_READY = TRUE signal indicates that the commissioning phase has

been completed, i.e. if a CDC error has occurred, the basic program sends a

"STOP D/E" to all the axes.

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

WHEN TRUE DO<Boot instructions>

Connecting Sensors/Actuators

7.5 Safe programmable logic (SPL)

Sinamics s120