Modbus tcp Node goes offline for no reason in microflex e150
I will brief the setup:
ABB HMI CP607 is interfaced with ABB servo microflex e150 via ABB modbus tcp protocol. Initially communication is established and everything is fine but suddenly for an unknown reason a communication break happens and all the tags in HMI is badged with exclamatory mark. Simultaneously it disconnects from Mint workbench also if logged in. I checked for protocol error message in HMI and it showed "failed;prot1;ABBE;node is offline".Everthing gets working fine only on next power-cycle. Cable for communication used is cat6.I dont suspect for any external noise since the communication break happens randomly morover distance between HMI and SERVO drive is within 1 metre and servo drive is equipped with input filter. Any help is appreciated.