Fb 200 "Safety; Safety Control Words And Safety Status Words - Siemens SINAMICS G120 Manual

5 Functional Mechanisms of this Application
5.3 Safety functionality
5.3.2

FB 200 "Safety"

When programming the safety-related program parts, only the normal restrictions
and programming rules for distributed safety have to be observed.
The F program of this example (FB200) is limited to the creation of a logic AND
operation between the signal of a safe input of SINAMICS G and an F-DI module,
using the result for the control/deactivation of a safety function.
Furthermore, the passivation bit of the F-DI and the SINAMICS G are read and the
acknowledge signal for reintegrating both 'modules' is used.
The safety bits of the SINAMICS G can be accessed just as the bits of F-DI/DOs in
the safety program:
In the example the input bytes 16 and 17 receive the PROFIsafe status word 1
and the input bytes 18 and 19 receive the PROFIsafe control word 5 of the
"PROFIsafe Telegram 900" frame.
In the example, the PROFIsafe control word 1 of the "PROFIsafe Telegram
900" frame is sent to the SINAMICS G120 via the output bytes 16 and 17.
5.3.3

Safety control words and safety status words

Figure 5-9 Safety control word 1
Safety control word 5 only consists of reserved bits.
SINAMICS G120C at S7-300/400F-DP
Beitrags-ID: 60441457, V2.2, 11/2014
53