Configuring the TM5NS31 Bus Coupler

Configuring the TM5 Bus Cycle Time

Procedure in EcoStruxure Machine Expert Logic Builder:

Step

Action

1

In the Devices tree, double-click the respective TM5NS31 bus coupler to open the parameter editor and click the tab Device Parameters Parameters.

2

Expand the TM5Bus parameter group and set the CycleTime parameter to a value suitable for your application. Refer to the description below this table.

3

Compile the project by selecting the Build > Build menu command or pressing F11.

By compiling, the modified cycle time value is transferred to the safety-related project in EcoStruxure Machine Expert - Safety. Refer to the section TM5 Bus Cycle Time Influences Safety Response Time below this table.

Best practice: In architectures with many TM5/TM7 modules (standard and safety-related) connected to one bus coupler, it may be necessary to increase the TM5 bus cycle time to ensure reliable communication. If one or several TM5/TM7 modules are temporarily unavailable (indication in the Device tree), the TM5 bus cycle may be too short. In such cases, increase the value to support more modules at the TM5 bus.

To achieve a higher system performance, decrease the bus cycle time value.

The TM5 bus cycle time and the Sercos cycle time have an impact on the safety response time. Refer to Configuring the Safety Response Time Relevant Parameters for TM5CSLC100FS and TM5CSLC200FS and Configuring the Safety-Related Response Time Relevant Parameters for TM5CSLC300FS and TM5CSLC400FS for details.