Bit no.,Digital signal,Value,Description
0,CON,1,"Converter On, Controller output. "
1,EBOFF,2,"Electric Brake OFF, Controller output."
2,HPON,4,"Hydraulic Pump ON, Controller output."
3,MB1OFF,8,"Mechanical Brake 1 OFF, Controller output."
4,MB2OFF,16,"Mechanical Brake 2 OFF, Controller output."
5,COK,32,"Converter OK, Controller input."
6,EBEM,64,"Electric Brake Emergency stop, Controller input."
7,EBST,128,"Electric Brake STatus, Controller input."
8,GON,256,"Grid ON, Controller input."
9,SSTOP,512,"Safety STOP (from Safety PLC) , Controller input."
10,MSTOP,1024,"Manual STOP button, Controller input."
11,NV,2048,"Nacelle Vibration sensor, Controller input."
12,AIRHN,4096,"AIR Humidity Nacelle hygrostat, Controller input."
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Notes:,,,
Column no 7 (Dig_IO_States) in the measurement files contains a numerical integer value representing the state of several digital input and output signals in the wind turbine controller system. ,,,
"The integer number is the sum of the values of the bits that are logical 1. See table below. For example: If bit 0, 4 and 12 is logical 1, and all other bits are 0, the integer value in the file will be 1+16+4096=4113.",,,