Specifications

Functions
88
4.1 Displays
RS2-4R
Release 1.0 03/04
U FAULT - Error (red LED)
If the "Manual setting" on page 139 is active for the signal contact, the
error display is then independent of the position of the signal contact.
4.1.2 Port status
These LED's display port-related information.
U 1 to 4 - Data, DA (yellow LED)
U 1 to 4 - Link status, LS (green/yellow LED)
Display Meaning
lit the signal contact is open, i.e. it reports an error.
not lit the signal contact is closed, i.e. it does not report an error.
Display Meaning
not lit no data traffic
flashes yellow data traffic
flashing light in
sequence
Initialization phase after restarting
Display Meaning
not lit no valid link
lit green valid link
flashes green (once a period) port is switched off by the RM (port 3 if the RM is
active)
flashes green (three times a period) port is switched off
flashing light in sequence Initialization phase after restarting