Siemens SCALANCE XR552-12M - Page 27

Description of the device
3.2 SELECT/SET button
SCALANCE XR-500
Operating Instructions, 05/2017, A5E03275845-11
27
Defining the fault mask
Using the fault mask, you specify an individual "good status" for the connected ports and the
power supply. Deviations from this status are displayed as errors/faults.
To define the fault mask, follow the steps below:
1. Change to display mode D.
Display mode D is active when the "DM1" and "DM2" LEDs are lit green.
If a different display mode is active, press the "SET/SELECT" button several times briefly,
until the "DM1" and "DM2" LEDs are lit green.
2. Hold down the "SELECT/SET" button for 5 seconds.
After 2 seconds, the "DM1" and "DM2" LEDs start to flash for 3 seconds. At the same
time the port LEDs go on one after the other.
After you have pressed the button for 5 seconds, the current settings are stored as the
"good status".
If you release the button before the 5 seconds are up, the previous fault mask is retained.
Enabling/disabling the redundancy manager
To enable/disable the redundancy manager, follow the steps below:
1. Change to display mode B.
Display mode B is active when the "DM1" LED is lit green and the and "DM2" LED is off.
If a different display mode is active, press the "SET/SELECT" button several times briefly,
until the "DM1" LED is lit green and the "DM2" LED is off.
2. Hold down the "SELECT/SET" button for 5 seconds.
After 2 seconds, the "DM1", "DM2" and "RM" LEDs start to flash for 3 seconds. At the
same time, the port LEDs light up one after the other.
If you release the button before the 5 seconds have elapsed, the action is canceled.
The result of the action depends on the initial situation:
–
Initial situation:
The redundancy manager and media redundancy are disabled.
Result:
After enabling the redundancy manager, media redundancy is also enabled.
–
Initial situation:
The redundancy manager and media redundancy are enabled.
Result:
After disabling the redundancy manager, media redundancy remains enabled.