Siemens SIMATIC FS600 Instrukcje Operacyjne Pobierz pdf (Strona 6)

Distributed Use of SIMATIC FS600 Laser

Scanner in Category 3 / SIL 2

Entry ID: 21330889

A&D Safety Integrated Page 6/51 AS-FE-I-010-V20-EN

21330889_as_fe_i_010_v20_en_lscanner.doc

Distributed use of the laser scanner SIMATIC FS600

In the “PROFIBUS“ variant, the SIMATIC FS600 laser scanner can be

operated as safe bus component together with non-safe standard

components on the same bus (PROFIBUS DP). This is enabled by the

PROFIsafe protocol, an expansion of PROFIBUS DP. For the user this

makes no difference: The SIMATIC FS600 laser scanner is connected to

the PROFIBUS in the same way as other DP slaves.

Communication between F-CPU and laser scanner SIMATIC FS600

The fail-safe S7-CPU (F-CPU) and the SIMATIC FS600 laser scanner

communicate via PROFIBUS.

• The laser scanner SIMATIC FS600 provides the F-CPU with cyclic input

data of 1 byte length.

• The laser scanner SIMATIC FS600 in return expects from the F-CPU

cyclic output data of 1 byte length.

These data can be processed and evaluated in the standard program and

in the safety program of the F-CPU.

The terms “input data” and “output data” refer to the view of the DP master

(F-CPU):

• Input data are read cyclically out of the laser scanner SIMATIC FS600

by the DP master (F-CPU)

• Output data are written cyclically into the laser scanner SIMATIC FS600

by the DP master (F-CPU)

The STEP 7 project (hardware configuration and sample code) delivered

with this safety functional example shows how the cyclic input and output

data are integrated into the application program of the F-CPU.

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Siemens SIMATIC FS600 Instrukcje Operacyjne Strona 6