Siemens SINAMICS Series Operating Instructions Manual page 441

Properties of the cyclic interfaces IF1 and IF2
The following table shows the different features of the two cyclic interfaces:
Table 10- 26 Properties of the cyclic interfaces IF1 and IF2
Feature
Setpoint (BICO signal source)
Actual value (BICO signal sink)
PROFIdrive conformance
PROFIdrive telegram selection (p0922)
Isochronous mode possible (p8815[0])
PROFIsafe possible (p8815[1])
Direct data exchange (PROFIBUS only)
List of drive objects (p0978)
Max. PZD (16-bit) setpoint / actual value DC_CTRL 64 / 64
Max. PZD (16-bit) setpoint / actual value encoder
Max. PZD (16-bit) setpoint / actual value TM31
Max. PZD (16-bit) setpoint / actual value
TM15DI_DO
Max. PZD (16-bit) setpoint / actual value TM150
Max. PZD (16-bit) setpoint / actual value CU
(device)
Table 10- 27 Implicit assignment of hardware to cyclic interfaces for p8839[0] = p8839[1] = 99
Plugged hardware interface
No option, only use Control Unit onboard interface
(PROFIBUS, PROFINET or USS)
CUD with CBE20 Communication Board Ethernet
Parameter p8839[0,1] is used to set the parallel operation of the hardware interfaces and the
assignment to the cyclic interfaces IF1 and IF2 for the Control Unit drive object.
The object sequence for process data exchange via IF2 depends on the object sequence
from IF1; see "List of drive objects" (p0978).
The factory setting of p8839[0.1] = 99 enables the implicit assignment (see previous table).
An alarm is generated in case of invalid or inconsistent parameterization of the assignment.
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A
Descriptions of functions
10.3 Communication according to PROFIdrive
IF1
r2050, r2060
p2051, p2061
Yes
Yes
No
No
Yes
Yes
4 / 12
5 / 5
5 / 5
5 / 5
20 / 25
IF1
Control Unit onboard
COMM BOARD
IF2
r8850, r8860
p8851, p8861
No
No
No
No
Yes
Yes
64 / 64
4 / 12
5 / 5
5 / 5
5 / 5
20 / 25
IF2
--
Control Unit onboard
PROFIBUS or Control
Unit onboard USS
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