Efficient Networks Siemens Sinamics S120 - Manual (Page 452)

Applications
11.1 Parallel operation of communication interfaces for CU320
Drive Functions
452
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4
Properties of the cyclic interfaces IF1 and IF2
The following table shows the different features of the two cyclic interfaces:
Table 11-1 Properties of the cyclic interfaces IF1 and IF2
Feature IF1 IF2
Setpoint (BICO signal source) r2050, r2060 r8850, r8860
Actual value (BICO signal sink) p2051, p2061 p8851, p8861
PROFIdrive conformance Yes No
PROFIdrive telegram selection (p922) Yes No
Isochronous mode possible Yes No
Slave-to-slave communication (PROFIBUS only) Yes Yes
List of drive objects (p978) Yes Yes
Max. PZD (16bit) setpoint / actual value SERVO 16 / 19 16 / 16
Max. PZD (16bit) setpoint / actual value vector 32 / 32 16 / 16
Max. PZD (16bit) setpoint / actual value infeeds 5 / 8 5 / 8
Max. PZD (16bit) setpoint / actual value TM41 16 / 19
Max. PZD (16bit) setpoint / actual value TM15 30 / 30
Max. PZD (16bit) setpoint / actual value TM17 36 / 36
Max. PZD (16bit) setpoint / actual value TM / TB (other) 5 / 5
Max. PZD (16bit) setpoint / actual value CU (device) 5 / 15
Table 11-2 Implicit assignment of hardware to cyclic interfaces
Plugged hardware interface IF1 IF2
No option, onboard interface only (PROFIBUS) Onboard --
PROFINET option (CBE20) COMM board --
CAN option (CBC10) Onboard COMM board
PROFIBUS option Onboard --
For parallel operation of the hardware interfaces and the explicit assignment to the cyclic
interfaces IF1 and IF2, the new parameter p8839[0,1] "PZD Interface hardware assignment"
exists for the device IO in the expert list.
The default setting of p8839[0,1]=99 enables the implicit assignment (see table above).
An alarm is generated in case of unvalid or inconsistent parameterization of the assignment.
Note
Parallel operation of PROFIBUS and PROFINET
Isochronous applications can only run via the cyclic interface IF1. With an additional
PROFINET module plugged in, there are two parameterization options:
- p8839(0) = 1 and p8839(1) = 2: PROFIBUS isochronous, PROFINET cyclic
- p8839(0) = 2 and p8839(1) = 1: PROFINET isochronous, PROFIBUS cyclic