Hi we are using the RZN1D to run ECAT slave using ETH4 and ETH5 ports,
We saw on the "RZ_N1_EB_Board_Setup_Notes.VE10.pdf" document section 8 the following remark :
Limitations: The default assembly of PHY addresses is not compliant with the EtherCAT standard. Solution: Change assembly of PHY address setting (refer chapter 5.1.3)
Can you explain how the Phy address is impacting the compliance to the ETHERCAT standard?
In combination with the RZN1 Expansion board, the RZN1D is able to support 3 EtherCAT ports (see Figure 5.1 EtherCAT Slave Connections in the RZN1 User Manual “Ethernet”). While the first two…
Apologies for the delay. Let us check this ticket and will will get back to you in short.
In combination with the RZN1 Expansion board, the RZN1D is able to support 3 EtherCAT ports (see Figure 5.1 EtherCAT Slave Connections in the RZN1 User Manual “Ethernet”). While the first two ports are on the RZN1D-DB board, the 3rd port is on the Expansion board.
According to the indications in document RZ_N1_EB_Board_Setup_Notes.VE10.pdf in chapter 5.1.3 RGMII3 (IC3), the MDIO address for the Ethernet port 3 (the 3rd EtherCAT port according to Figure 5.1 above) is 10. On the RZN1D-DB board the two EtherCAT ports have the MDIO addresses 0 and 1.
On the other side the EtherCAT specification and recommendations provide the following:
The PHY addresses should be equivalent to the logical port number (0-3).
Some ESCs also support a fixed offset (e.g. offset 16, PHY addresses are logical port number plus 16: 16-19), an arbitrary offset, or even individually configurable PHY addresses. If none of these possibilities can be used, the PHY address should be configured to logical port number plus 1 (1-4), ...
Please refer to the related EtherCAT documents from the ETG / EtherCAT Technology Group and Beckhoff. The text above is taken from the an_phy_selection_guidev2.7.pdf document:
EtherCAT PHY Selection Guide
Requirements to Ethernet PHYs used for EtherCAT …
You see, with the provided MDIO addresses 0, 1 and 10 for the 3 EtherCAT ports on the RZN1D-DB+Expansion you cannot fulfil the EtherCAT requirements for consecutive MDIO addresses.
Additional note:Please also download the latest RZN1 Solution Kit package from our website. The document name "RZ_N1_EB_Board_Setup_Notes.VE10.pdf" is indicating that you are using an older version. The current version is VE20.
Hello Tsahi,Did you resolve your issue? Is there anything else to assist you? Could i go on and mark the answer as verified? Kind Regards.