Data Library
2.2 Status Bits
ATC5300
20
Modbus Communication Protocol, Edition 03/2011, A5E02469001-02
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Following table shows meaning of bits of the word at address 2074h (Line 1) and 2076h
(Line 2):
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Following table shows meaning of bits of the word at address 2074h (Line 1) and 2076h
(Line 2):
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Following table shows meaning of bits of the word at address 2078h:
Bit
Line Status
0
Line values into limits
1
Line values into limits delayed
2
Voltage into limits
3
Voltage ok
4
Frequency into limits
5
Frequency ok
6
Voltage below min
7
Voltage above max
8
Voltage asymmetry
9
Voltage phase loss
10
Frequency below min
11
Frequency above max
12
Wrong phase sequence
13
All line parameters ok
14
…
15
Not used
Bit
Breaker Status
0
Breaker closed
1
Trip alarm
2
Withdrawn alarm
3
Command status (1 = close)
4
Close command output
5
Open command output
6
…
15
Not used
Bit
Input Functions Status
0
Line 1 breaker closed feedback
1
Line 1 breaker trip
2
Line 1 breaker Withdrawn
3
Line 2 breaker closed feedback
4
Line 2 breaker trip
5
Line 2 breaker Withdrawn
6
Transfer to secondary line
7
Inhibit return to main line
8
Emergency pushbutton
9
Generator start
10
Generator 1 ready
11
Generator 2 ready
12
Keyboard locked
13
Lock parameters
14
…
15
Not used