Siemens SINAMICS S120 Series - Page 51

Communication according to PROFIdrive
3.3 Parallel operation of communication interfaces
Communication
Function Manual, 12/2018, 6SL3097-5BD00-0BP0
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Table 3- 6 Implicit assignment of hardware to the cyclic interfaces for p8839[0] = p8839[1] = 99
Plugged hardware interface
IF1
IF2
No option, only use Control Unit onboard interface
(PROFIBUS, PROFINET or USS)
Control Unit onboard --
CU320-2 DP with CBE20 (optional PROFINET
interface)
COMM BOARD Control Unit onboard
PROFIBUS or Control
Unit onboard USS
CU320-2 PN with CBE20 (optional PROFINET
interface)
Control Unit onboard
PROFINET
COMM BOARD
PROFINET
CAN option CBC10
Control Unit onboard
COMM BOARD CAN
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 sequence of objects is in line with p0978 (list of drive objects) for both interfaces.
The factory setting of p8839[0,1] = 99 enables the implicit assignment (see table above).
An alarm is generated in case of invalid or inconsistent parameterization of the assignment.
Note
Parallel operation of PROFIBUS and PROFINET
Either the isochronous mode or the PROFIsafe functionality can be assigned to an interface
via p8815 (IF1 or IF2).
Example:
•
p8815[0] = 1: IF1 supports the isochronous mode.
•
p8815[1] = 2: IF2 supports PROFIsafe.
Additional parameter assignment options a
re possible if additionally the PROFINET module
CBE20 is inserted in the CU320
-2 DP:
•
p8839[0] = 1 and p8839[1] = 2: PROFIBUS isochronous, PROFINET cyclic
•
p8839[0] = 2 and p8839[1] = 1: PROFINET isochronous, PROFIBUS cyclic