Siemens SINAMICS S120 Series

Communication via PROFINET IO
5.6 Communication via PROFINET Gate
Communication
Function Manual, 12/2018, 6SL3097-5BD00-0BP0
137
5.6.1 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.