running a system on Mango 3.0. Everything is working fine, but have gotten this urgent alarm that returns to normal after a few seconds.
Exception from modbus master: Bad file descriptor (ioctl FIONREAD failed)
Would like to know how to locate the problem causing the alarm. It happened about 7 times in Feb and 3 so far in Mar. It came to my attention after I started alarms to be sent out via text recently.
Thanks in advance