
B-62924EN/04 MAINTENANCE 3.PROFIBUS FOR THE STAND-ALONE TYPE Series 16i/18i/21i, Series 15i, AND Power Mate i
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3.2 LED INDICATORS AND THEIR MEANINGS
3.2.1 LED Indicators of the DP-Master Function
NOTE
The face plate is indicated by the broken line.
Name Color Description
LED1 Green Indicates whether the CPU of this board has been
activated.
Lit if the CPU has been released from the reset state and
activated.
The LED does not go on when the power is turned on.
LED2 Green Indicates whether normal communication is performed.
Lit if normal communication is performed.
Not lit if communication is not performed.
The LED does not go on when the power is turned on.
LED1LED2
CN1