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Control Bits and Extra Flags
Control Bits and Extra Flags make it possible for the Modbus RTU master to control various WL functions.
The Control Bits and Extra Flags are accessed using the following functions:
- 01 Read Coils
- 05 Write Single Coil
- 15 Write Multiple Coils
Byte Order
Data points larger than two bytes transmitted in the Motorola Format (Big-Endian).
Bit number
WL
Control Bits
0, 1
Breaker open / close
00 = no action
01 = open circuit breaker
10 = close circuit breaker
11 = no action
2
clear reason for trip
3
Not used
4
User output
0 = User output Off
1 = User output On
5
Not used
6
Not used
7
Not used
Extra Flags
8, 9
not used
10
Clear log book
11
Clear all min/max values
12
Clear temperature
min/max values
13
Not used
14
Clear maintainance counters
15
Synchronize system clock at a rising edge
Sets the time to xx:30:00:00
Byte Order
Type of Data
Byte 0
Byte 0
char,
unsigned
char
Byte 1
Byte 1
Byte 0
High Byte
signed
int,
unsigned
int
Byte 1
Low Byte
Byte 0
High Byte
High Word
signed
long,
unsigned
long
Byte 1
Low Byte
Byte 2
High Byte
Low Word
Byte 3
Low Byte
Summary of Contents for UL 489
Page 36: ...5 21 Frame size II 3000 A Frame size III 1 Holes 14 mm 0720 1 0721_nu ...
Page 63: ...7 2 Horizontal connectors 0733_nu top view ...
Page 64: ...7 3 Rear vertical connectors 0734_nu top view rear view ...
Page 65: ...7 4 Front connectors 0736_nu front view top view ...
Page 66: ...7 5 Front connectors and pressure wire terminals 0737_nu top view front view ...
Page 67: ...7 6 7 2 Frame size II fixed mounted version 0494 3_nu ...
Page 68: ...7 7 Class C always 0494 5_nu top view rear view ...
Page 69: ...7 8 2500 0738_nu LH side view front view ...
Page 71: ...7 10 7 4 Frame size III fixed mounted version 0495 1_nu LH side view ...
Page 72: ...7 11 0495 2_nu top view top view ...
Page 73: ...7 12 0495 3_nu top view rear view ...
Page 75: ...7 14 7 5 Door cut outs fixed mounted circuit breaker Frame size I 0735_nu ...
Page 76: ...7 15 Frame size II III 0496_nu ...
Page 77: ...7 16 7 6 Frame size I draw out version 0745_nu ...
Page 78: ...7 17 0746_nu rear view top view ...
Page 79: ...7 18 0747_nu bottom view ...
Page 80: ...7 19 0748_nu ...
Page 81: ...7 20 0749_nu ...
Page 82: ...7 21 7 7 Frame size II draw out version 0490 1_ul ...
Page 86: ...7 25 7 8 Frame size III draw out version ...
Page 87: ...7 26 ...
Page 88: ...7 27 ...
Page 89: ...7 28 7 9 Door cut outs for draw out circuit breakers Frame size I 0750_nu ...
Page 91: ...7 30 7 11 External sensor for neutral conductor WLNCT2 ...
Page 92: ...7 31 WLNCT3 ...
Page 107: ...9 5 I tripping Ground fault tripping ...
Page 351: ......