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MAN20001572-01-07/22 (translation of the original operating instructions)
Operating Instructions Bus Module
MBM-PN-..-MLI-… (PROFINET)
EN
11.5. PROFINET data bytes
Each module or submodule sends specific, non-safe communication data. The following chapters provide an overview of
the most important module types and their data. You can find item-specific information on which data blocks your modules
or submodules contain on the supplementary data sheet (see chapter
11.3. Information on the supplementary data sheets
The following modules can be present in various combinations in an MLI system:
Ì
A bus module MBM (contains everything necessary for a bus connection)
Ì
Several interlocking/locking modules, MGB2-I or MGB2-L (together with the handle module, they form an interlocking
device with or without guard locking)
Ì
Several expansion modules MCM
Ì
Several submodules MSM
Each module or submodule occupies a certain number of PROFINET data bytes in the input and output areas of the control
system.
With some modules and submodules, you have the choice between a
standard configuration (basic)
that has basic status,
signaling and control functions or an
extended configuration
that also contains an additional byte with exact error codes
for diagnostic purposes.
11.6. PROFIsafe data bytes
Safe PROFIsafe data are transmitted in addition to the non-safe PROFINET data. These data include all information on the
position of the bolt tongue and guard locking on an interlocking or locking module MGB2, emergency stop and enabling
switch, for example.
While PROFINET data are always incorporated by bytes, the data for PROFIsafe are always incorporated by individual bits.
This means you must make sure you provide enough safe memory for PROFIsafe data.
The following PROFIsafe data blocks are provided:
Ì
2 input bytes and 2 output bytes
Ì
4 input bytes and 4 output bytes
Ì
8 input bytes and 8 output bytes
4 bytes of PROFIsafe internal data are always appended to these device-specific data blocks.
The bus module supports PROFIsafe version 2.6.1 as standard. If your control system does not support this version, the
respective modules for version 2.4 are also available from us under “Legacy” in the GSD.
All device-specific data bits are present in parallel in the non-safe PROFINET data area and can be used as status bits there.
Important!
Never use the status bits for safety functions!
11.6.1. Data block for PROFIsafe
Important!
For the scope of the safe bits, refer to the supplementary data sheet for your device or set. Use only
bits that are specified according to the data sheet. Safe bits are marked there with a warning symbol
and bounded with a dotted line.
