11.03 3 Safety-Related Functions
3.12 SI I/Os using fail-safe modules connected to PROFIBUS DP (840D from SW 6.3.30)
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
3-183
Just like Safety Integrated, the PROFIsafe system structure also has a
2-channel diverse system design based on the PLC and NCK PROFIsafe layer.
The principle of PROFIsafe communications between SINUMERIK 840D and
the F modules on the PROFIBUS DP is explained in detail below based on the
transfer of the SPL output data $A_OUTSE/OUTSEP to the F-DO modules:
The PROFIsafe layer creates a PROFIsafe telegram (F telegram) in each
PROFIsafe cycle with the ANDed SPL output data as F useful (net) data:
F useful (net) data = (OUTSEP
AND $A_OUTSE)
and the backup data (CRC and ConsecutiveNumber) and transfers it to the
PROFIBUS layer via the DP data interface.
The PROFIBUS layer transfers a DP telegram with the PROFIsafe telegram
created by the F layer in each PROFIBUS cycle as DP useful data to the DP
slaves that is independent of the PROFIsafe cycle. The F telegram is sent to
the specific F-DO module via the backplane bus of the DP slaves.
The configuration and parameterization needed to connect the F modules to
the external NCK/PLC-SPL interfaces entails the following steps:
1. Create the configuration using SIMATIC STEP7.
Refer to Chapter: Configuring and parameterizing the ET 200S F I/Os
2. Perform a standard SINUMERIK 840D commissioning (minimum
requirement).
3. Load the configuration and the PLC basic and user program modules into
the SINUMERIK 840D PLC.
4. Parameterize the PROFIsafe-relevant SINUMERIK 840D NCK machine
data.
Refer to the following Chapter: Parameterizing the SINUMERIK 840D NCK
3.12.5 Configuring and parameterizing the ET 200S F-I/O
The information on configuring and parameterizing the ET 200S F I/Os given in
this chapter essentially refers to the specific needs of SINUMERIK Safety
Integrated. A complete set of information on configuring and parameterizing the
ET 200S and/or ET 200S F components is provided in the SIMATIC manuals:
References: SIMATIC Distributed I/O device ET 200S, Manual
Order No.: 6ES7 151-1AA00-8AA0
SIMATIC Distributed I/O device ET 200S fail-safe modules,
Manual
Order No: 6ES7 988-8FA11-8AA0
The F I/Os are configured while configuring the standard PROFIBUS using
STEP7.
After the "S7 Distributed Safety" option package or the S7 F Configuration
Package has been installed (refer to the previous chapter), the F modules are
PROFIsafe
communications
Configuring/
parameterizing
Configuring
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