Siemens SINAMICS S120 Function Manual page 741

Drive functions

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The telegram structure

● Parameter p0978 contains the drive objects that use a cyclic PZD exchange. All drive

objects after the first zero do not participate in the cyclic exchange.

● If the value 255 is written to p0978, this drive object is visible to the PROFIdrive controller

and empty (without actual process data exchange). This permits cyclic communication of

a PROFIdrive controller in the following cases:

– with unchanged configuration to drive units that have a different number of drive

– with deactivated drive objects, without having to change the project

● One PZD = one word.

● Physical word and double word values are inserted in the telegram as referenced

● p200x apply as reference variables (telegram contents = 4000 hex or 4000 0000 hex in

the case of double words if the input variable has the value p200x).

You can find the detailed structure of the telegrams in the SINAMICS S120/S150 List Manual

in the associated function diagrams.

Which drive objects support which telegrams?

Drive object

SERVO (EPOS)

SERVO (position control)

VECTOR (EPOS)

Drive functions

Function Manual, 11/2017, 6SL3097-4AB00-0BP5

Normalization of speed

Telegrams (p0922)

370, 371, 999

1, 2, 3, 4, 5, 6, 102, 103, 105, 106, 116, 118, 125, 126,

136, 138, 139, 220, 999

7, 9, 110, 111, 999

1, 2, 3, 4, 20, 220, 352, 999

7, 9, 110, 111, 999

81, 82, 83, 999

No predefined telegram.

No predefined telegram.

11.1 Communication according to PROFIdrive

Communication

Function dia-

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