[etherlab-users] Trying to write value for watchdog register (0x0420/0x0421) to slave EEPROM

[Ralf Ermes]

Hello everybody,

I want to change the value for the watchdog at ESC register 0x0420/0x0421. This is easily done by specifying

<ESC>
   <Reg0420>50000</Reg0420>
</ESC>

in the corresponding XML-file for the slave.

When using TwinCat with this new XML-file the new value is automatically transferred to the slave ESC-register when TwinCat scans the bus and I actually see a watchdog with a 5 second timeout.
As we are using Etherlab Ethercat Master instead of TwinCat I would like to save this changed value in the EEPROM on the slave.
I tried to write the EEPROM using TwinCat, did a power-reset, but the changed value was either not written to the EEPROM or not read out by the ESC...the watchdog time has not changed and remains at the default 100ms.

The EtherCat Knowledge Base at the ETG web site states that ESI and SII both supply the same information about a slave.

So what am I doing wrong? Is TwinCat not writing the EEPROM correctly? Is it generally not possible to write this configuration information to the slave EEPROM?

I hope somebody can help.
Best regards
Ralf


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