Siemens SENTRON VL Series System Manual page 141

Table 6- 6 Binary status information in the cyclic frame
Byte Bit Value
n 0/1 0..3
2/3 0..3
4
5
6
7
n+1 0
1
2
3
4/5/6 0..7
7
Control bytes
All three basic types contain a 2-byte block with the most important binary information for
controlling the circuit breaker. This is transferred with each frame.
The three basic types differ in the scope and content of the data reported by the circuit
breaker to the class 1 master (e.g. PLC) with each Data_Exchange. From the perspective of
the PLC, this data is by definition input data.
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
SENTRON WL
COM15
0 Disconnected position
1 Connected position
2 Test position
3 Switch is not available
0
1
2
3
Ready-to-close signal available
Undervoltage release charged
Spring energy store is compressed
An activated threshold has been
exceeded
An alarm signal is currently present
PROFIBUS write protection disable deactivated, changes allowed
Status of the free user input
0 No tripping operation or last tripping operation acknowledged
1
2
3
4
5 Tripping operation as a result of extended
protection function
6
7
Load shedding alarm
Position of circuit breaker
Status of the circuit breaker
Not ready
OFF
ON
Switch has tripped
Overload warning present
Reason for last tripping operation
Overload tripping (L)
Instantaneous short-circuit
Short time-delayed short-circuit (I)
Ground fault (G)
Tripping operation as a result of extended
protection function (temperature)
Overload in neutral conductor
PROFIBUS data transfer
6.9 Cyclic data traffic
SENTRON VL
COM20
Not available
Not available
Not available
Not available
Not available
Not available
Not available
Not available
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