HMIs, human machine interfaces ► Panel PC ET/MT-4x6... ► Electrical Installation ► Connection overview ET/MT-4x6... ► ET/MT-xx6-A-Fx/Tx-... rev. 3
The status of the respective LEDs at the operator interfaces indicates the activity of the corresponding data lines.
In hazardous areas the operator interface must not be operated without its enclosure lid and back lid.
This means that the status LEDs can only be viewed during commissioning or in a safe area !