Profinet V2.3: Optimized Data Transfer / 125 Μs Profinet Send Cycle Clock - Siemens SIMOTION D4x5-2 Commissioning And Hardware Installation Manual

Parameter assignment / addressing
6.5 Configuring PROFINET IO
Further information
For further information, see the
6.5.2.5 PROFINET V2.3: Optimized data transfer / 125 µs PROFINET send cycle clock
All SIMOTION D4x5‑2 DP/PN Control Units support PROFINET according to the
PI specification PN V2.3. For SIMOTION D455‑2 DP/PN, the optional functionality
Performance Upgrade is available, which provides the following functional scope:
● Reduction of the minimum PROFINET send cycle clock from 250 µs to 125 µs (isochronous)
● Optimization of data transfer (e.g. by Dynamic Frame Packing - DFP)
By optimized data transfer
– more devices can be operated with the same cycle time or
– the cycle time can be reduced for the same number of devices
Requirements
The following configuration rules must be taken into account when using the 125 µs send cycle
clocks:
● The 125 µs send cycle clock is only available for the SIMOTION D455-2 DP/PN
● Configuration only with SCOUT TIA as of V4.5 (SIMOTION in the TIA Portal)
● The 125 μs send cycle clock is only supported by the onboard PROFINET interface X150
● X150 can only be used as a PROFINET IO controller (not as an I-device)
● Only one port can be used on X150; the other two ports must therefore be deactivated in
the interface properties of X150
The following then applies:
– The deactivated ports also cannot be used for TCP/IP and UDP communication
– No MRP/MRPD media redundancy
– Devices that support a send cycle clock of 125 µs must be connected via "one" active
● For isochronous mode, the clock synchronization must be activated on the controller (sync
master) and on the device (sync slave) (RT class: IRT)
● The 125 µs send cycle clock is only supported in conjunction with Servo_fast/IPO_fast;
activate the "Use Servo_fast" option at Isochronous mode in the CPU properties in the TIA
Portal.
● In addition to the send cycle clock, the "Enable High Performance" option must be activated
for the sync domain.
158
port of X150 (assign device to the controller and configure the Ethernet topology in the
topology view)
SIMOTION Communication System Manual.
Commissioning and Hardware Installation Manual, 03/2018, A5E33441636B
SIMOTION D4x5-2