Siemens SINUMERIK 840D Description Of Functions page 365

11.03
7.3 Safety Integrated with SPL
The principal method of operation is illustrated in the diagram below. Please
Description
refer to this diagram when reading the following sections.
Switches. light barriers, signal lamps, contactors, etc.
NCK I/Os
1 2 3 4 5 6 7
$A_INSE
SPL input
variables
Machine data
Safe_SPF
NCK-SPL
Logic
Machine data
$A_OUTSI
SPL output
variables
NCK-SGA/SGE signals
SI Kernel
Fig. 7-3 Function chart – a detailed view of this diagram is provided in the Appendix (7.3.12)
Example blocks for The PLC blocks, listed in Chapter 7 are available as example in the toolbox for
the basic PLC program. Further, an S7 library can be requested via Customer
SI applications
Support (refer to 2.10) within the scope of a Hotline request. This S7 library has
example blocks for the SI application that can be generally used. They can be
incorporated in a specific project and adapted to the particular requirements by
appropriately parameterizing them.
Description In this example, PLC blocks FC95 (start ASUB), FC96 (PLC-SPL), FC97
(safety test routine) are used for Safety Integrated.
The basic program blocks FB4 and FC9 are called (FB1/P3) in FC 95 to start
the NCK ASUB. The parameter supply for FC9 and FB4 is stored in DB120.
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
8
$A_OUTSE
SPL output
variables
Safe_SPF
Data and event
Logic
cross -check
NCK-SW / FB 15
$A_INSI
SPL input
variables
Data and event
cross -check
Data exchange via drive bus
Note
Examples of the PLC blocks can be requested from the Centre of
Competence Service (CoCS) – Sinumerik Safety Integrated.
Also refer to Chapter 2.10.
7 Configuring example
7.3 Safety Integrated with SPL
Simatic I/Os
Inputs
Outputs
DB18
FC XXX
PLC-SPL
Logic
DB18-DB31-61
Drive SGA/
SGE signals
Drive SW (on RK)
7-365