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Configuration and diagnostics
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PHOENIX CONTACT
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4.4.3
Starting with faulty software (firmware)
If the software (firmware) installed on the MMS/MCS is faulty, you can restore or update the
firmware using an update. Observe the 7-segment display (see also 1.3.2 "Meaning of the
7-segment display (MMS)").
Procedure:
–
Connect the switch to your PC via the serial V.24 (RS-232) interface. Make sure that
your HyperTerminal is configured correctly (see configuration on page 4-123).
–
Restart the switch.
Figure 4-55
Scre16en displayed on HyperTerminal when booting
If the device firmware is faulty, the following message appears:
Figure 4-56
Selection menu for faulty firmware
6 8 7 4 0 0 2 4
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