TSX AEY414 Problem

Dear All,

TSX AEY414 was installed on a machine  and was working fine. suddenly module becomes faulty and its ERR LED tuned ON

we replace the new same module and the new module was showing the same error

we replace the 3rd new module , this worked for 8-12 hours fine. now the situation is that RUN LED is on of the module, but values on HMI display remains 0.0

can anyone help me please?

waiting for reply

Thanks