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7 Acyclical PROFIBUS services
The services are described from the point of view of the master. Len: for strings without terminating
0x0.
7.1 Indirect slot addressing, e.g. for Siemens S7 projects
You can address the slot that you want directly if your PROFIBUS master can directly adress a
selected slot (e.g. Beckhoff, Bosch). In some PROFIBUS masters, however, the slot is already
addressed implicitly through the selected mode (e.g. on the Siemens S7).
The DIGIFORCE
®
9307 offers a solution for cases in which your PROFIBUS master cannot directly
select a slot. You are able to link to any other desired slot from your implicitly addressed slot. The
linking is possible through index 1, and is explained in the diagram below, taking slot 30 as an
example. The slots < 30, and indexes < 10 are reserved for this reason, and are not available for
normal access in the device settings.
