Siemens SINAMICS Series Operating Instructions Manual page 627

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Table of Contents

The peer-to-peer interface supports two topologies:

● Point-to-point connection (see the series connection example further down)

– 4-wire connection between two converters

– Data transmission in both directions

● Bus connection (see the bus connection example further down)

– 2-wire connection between multiple converters

– Data transmission in one direction only

– The active sender is selected by means of the "Send enable" signal selected using

Parameterization

Table 10- 74 Parameterizing the peer-to-peer interface

Peer-to-peer protocol selection

Bus terminator

Error statistics

SINAMICS DCM DC Converter

Operating Instructions, 12/2018, A5E34763375A

p50817. The send enable may only be at the "High" level for one converter in each

case. Converters whose send enable is at the "Low" level switch their sender to high

10.30 Serial interface with peer-to-peer protocol

p50791 = 1 to 5 words

p50793 = 1 to 13, corresponding to between 300 and

187,500 baud

p50795 = 0: Bus terminator OFF

p50795 = 1: Bus terminator ON

r50799[1]: Displays receive errors on the peer-to-peer

Descriptions of functions