Siemens SINAMICS S120, Function Manual

Page: 828 / 1094

Communication
11.3 Communication via PROFINET IO
Drive functions
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Function Manual, 11/2017, 6SL3097-4AB00-0BP5
11.3.6.1 Functions supported by PN Gate
PN Gate function overview
Function Description
Communication channels
•
Cyclic data communication:
– IRT
– RT
• Acyclic data communication:
- PROFINET alarms
- Read/write data set
- TCP/IP
PROFINET basic services
•
LLDP
• DCP
•
SNMP
Accesses to process data Access to the process image:
•
Subslot granular
• Device granular
Consistency of the cyclic data Each process data communication cycle can contain a data
component for IRT and RT communication
Network topologies
• Line
•
Star
• Tree
Information from the PN Gate
•
Device number
• Slot number with the associated subslot numbers
•
IO address
• Diagnostic addresses
•
Module ID (vendor ID and module ID)
• Send cycles and update times
Activating/deactivating Activating and deactivating devices via the API without alarm
triggering
Automatic address assignment Topology-based initialization
Number of IO devices A maximum of 64 devices
IO area in the controller
•
4096 bytes each, in and out
• Maximum number of slots: 2048
•
Maximum bytes per slot/module size: 254 bytes
Send cycle
•
RT communication: 1 ms
Update times RT 2
n
with n = 0 to 9x send cycle
•
IRT communication
1 ms - 4 ms in increments of 250 μs minimum send cycle of
1 ms for 32 devices. It is permissible to reduce the data per
device.