Siemens SINAMICS - Page 156

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 com‐
ponent 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.
Communication
A.1 Communication
Industrial Security
156 Configuration Manual, 08/2017, A5E36912609A