MODBUS connection for Simocode - SICAM AK RTU unit is not able to read remaining relay's parameters

Dear Experts
We need your advice please.

Currently we are testing a typical MODBUS connection for our Simocode, in order to set up this in our plant, around 13 devices on daisy chain.

During our test,have found that , If any one of simocode pro V relay is power off on daisy chain,Our SICAM AK RTU unit is not able reading remaining relay's parameters and communication error coming. If all the relays power up condition we are not facing any issue.

Kindly advice.

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Split from Simocode Pro V - Comm. Problem when a Trip is activated - help please.