Renesas Electronics has been deeply involved in the industrial automation field for many years, developing multiple series of embedded product lines for various application scenarios: RL78, RX, RA MCU, and RZ MPU series. In this live broadcast, Renesas’s partner Yuxin Technology introduced the PROFINET servo solution based on Renesas’s RZ/N2L. You can click on the “Read Original” at the end of the article or watch the video below to view the live replay.
– Click to view the video –
Selected Q&A from the PROFINET Servo Solution
Q1
How many Ethernet ports does the RZ/N2L support? Does the port support POE power supply? Is fiber optic interface supported?
A1
Three Ethernet ports with switching functionality, supports POE, does not support fiber optic interface.
Q2
Does the N2L support dynamic adjustment of the electronic gear ratio for the servo system? How is it implemented through PN?
A2
The adjustment of the electronic gear ratio is usually configured in the PLC or the driver panel or configuration software, specifically implemented by hardware buttons or local communication protocols (such as USB). The current demo can support local configuration of the electronic gear ratio after an upgrade.
Q3
What is the maximum number of PWM outputs supported by the N2L? What types of motors are supported by the motor driver component in the development SDK?
A3
16-bit×8+32-bit MTU3 (9 channels), 32-bit GPT (18 channels) = 27 channels.
Three-phase complementary PWM output for dual motor control, compatible with Kaibang motor BM0602B1PD-A02.
Q4
Does T2M support hardware acceleration for the FOC algorithm? Are there dedicated instructions or hardware units for Park/Clarke transformations?
A4
Yes, it supports built-in TFU trigonometric function accelerator.
Q5
What is the memory footprint of the PN protocol stack on T2M and N2L? Is external RAM required?
A5
The PN protocol stack size is 12MB, requiring external HyperRAM or SDRAM.
Q6
What is the minimum power consumption of this servo board?
A6
Currently, it does not exceed 24W, not considering the driver part.
Q7
How is the performance of N2L PN class B? What are the cycle jitter and redundancy switching time?
A7
1ms update cycle, jitter does not exceed 0.2ms.
Q8
What operating system does the N2L run the protocol stack on?
A8
FreeRTOS and eCOS.
Q9
Can this solution be used for collaborative robots? Can SPI be configured as a bus? 1 master and N slaves?
A9
Yes, SIP can be configured as one master and multiple slaves.
Q10
What is the minimum actual cycle data period under IRT? Which interface is used to communicate with the external servo MCU? Is the rate sufficient?
A10
125us, SPI interface rate can reach 48Mbps.
Welcome to learn more about Renesas Electronics:
Need Technical Support?
If you have any questions while using Renesas MCU/MPU products, you can scan the QR code below or copy the URL into your browser to access the Renesas Technical Forum for answers or online technical support.
https://community-ja.renesas.com/zh/forums-groups/mcu-mpu/
1
END
1
Recommended Reading
Send EtherKit | Live: Renesas MPU PROFINET Servo Solution
Prize Q&A | Functional Safety (FuSa) Design Challenge (Series Science Popularization 3)
