Siemens Sinamics S110 Function Manual page 390

Communication PROFIBUS DP
9.1 Communication according to PROFIdrive
Telegram interconnections
When you change p0922 = 999 (factory setting) to p0922 ≠ 999, the telegrams are
interconnected and blocked automatically.
Note
Telegram 111 is the exception: Here, PZD12 in the transmit telegram or PZD12 in the
receive telegram can be interconnected as required.
When you change p0922 ≠ 999 to p0922 = 999, the previous telegram interconnection is
retained and can be changed.
Note
If p0922 = 999, a telegram can be selected in p2079. A telegram interconnection is
automatically made and blocked. The telegram can also be extended.
This is an easy method of creating extended telegram interconnections on the basis of
existing telegrams.
The telegram structure
The parameter p0978 contains the sequence of DOs that use a cyclic PZD exchange. A zero
delimits the DOs that do not exchange any PZDs.
If the value 255 is written to p0978, the drive unit emulates an empty drive object that is
visible to the PROFIdrive Master. This permits cyclic communication of a PROFIdrive Master
● with unchanged configuration to drive units that have a different number of drive objects.
● with deactivated DOs without having to change the project.
Note
• The following must apply to ensure conformity with the PROFIdrive profile:
• One PZD = one word.
• Physical word and double word values are inserted in the telegram as referenced
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– Interconnect PZD receive word 1 as control word 1 (STW1).
– Interconnect PZD send word 1 as status word 1 (STW1).
Use WORD format for PZD1.
Only one of the interconnection parameters (p2051 or p2061) can have the value ≠ 0
for a PZD word.
variables.
p200x are relevant as reference values (telegram contents = 4000 hex or
4000 0000 hex for double words if the input variable has a value of p200x).
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
Drive functions