Operation
EL6900 57Version: 3.1.0
Fig.51: Attach TwinSAFE variable for outputs
5.4 Diagnostics
5.4.1 Diagnostic LEDs
The LEDs Diag 1 to Diag 4 display diagnostic information for the EL6900.
Fig.52: EL6900 diagnostic LEDs
5.4.1.1 Diag 1 LED (green)
The Diag 1 LED is currently always on when a project is loaded into the terminal.
Display Meaning
lit A project is stored in the terminal.
5.4.1.2 Diag 2 LED (red)
The Diag 2 LED indicates internal process variable errors (in preparation).
Display Meaning
- in preparation
5.4.1.3 Diag 3 LED (red)
The Diag 3 LED provides further details for the Diag 4 LED (see below).
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