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Introduction
Features of the FC 56
S All MOBY systems (SLGs and MDSs) can be used with the FC 56.
S The user can chain several commands together. This means that many small
data areas of an MDS can be processed with one command start.
S It is easy to set up the data structures with "Universal Data Types" (UDTs). The
UDTs are available with English (UDT 10, 50 ...) and German (UDT 11, 51 ...)
commentary.
S Transmission of the data to and from the ASM and execution of the commands
on the ASM take place in parallel. This means optimal data throughput.
S Use of the symbolic names for the block variables gives you a very well
organized user program even with complex configurations.
Features of the interface
For the features of the individual ASMs, see appendix A. Since the features of the
individual ASMs are continuously being added to, you should always use the latest
edition of this description.
PROFIBUS configuration
A GSD file on the "Software MOBY" product (6GT2 080-2AA10) is included for the
interface modules which can be directly connected to PROFIBUS.
Technically, the FC 56 uses the PROFIBUS-DP/V1 protocol. Important control data
are cyclically sent in a data word. Actual MOBY data are transmitted in non-cyclic
telegrams.
Non-SIMATIC applications
Applications which are programmed on remote controllers cannot use the FC 56.
The PROFIBUS interface is described in Appendix B for these applications.
Programmers of a remote controller can use this interface to develop their own
MOBY function. Together with the FC 56 description and the UDTs, data structures
which are the same or similar to the FC 56 can be created on a remote controller.
Prerequisites for use of the FC 56
Remember that the FC 56 uses non-cyclic telegrams (SFC 58/59). Older CPUs of
the SIMATIC family or a small model series may not have these services. Be sure
to check this during configuration.
S STEP 7 version
The ASM 475 and ASM 473 modules require a STEP 7 version wV 5.1.
1-2
FC 56
J31069-D0155-U001-A0-7618
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