R
I have a brand new XBTF 011310 telemechanique HMI magelis terminal. I was working on it then I disconnected it from its 24V DC power supply by removing its feeding wires from its removable screw terminal without turning off the 24V DC power supply. Then I reconncted the feeding wires again while the supply was still turned on but the HMI didn't turn on and simply its buttons' lights went On and then Off and the HMI produced a sound similar to a Morse Code as if it was signaling a specific error. Only its on communication light remained On and no response after that. Thanx!!!
