Data library
8.7 Formats
3WL/3VL circuit breakers with communication capability - PROFIBUS
272 System Manual, 03/2011, A5E01051353-02
Table 8- 69 Format (309) "Harmonic analysis"
Harmonic Byte Bit Meaning
0 — Harmonic current: Exponent (signed char)
1 — Harmonic current: Value (unsigned char)
2 — Harmonic voltage: Exponent (signed char)
1st
3 — Harmonic voltage: Value (unsigned char)
4 — Harmonic current: Exponent (signed char)
5 — Harmonic current: Value (unsigned char)
6 — Harmonic voltage: Exponent (signed char)
2nd
7 — Harmonic voltage: Value (unsigned char)
3rd - 28th 8 ... 111 — ...
112 — Harmonic current: Exponent (signed char)
113 — Harmonic current: Value (unsigned char)
114 — Harmonic voltage: Exponent (signed char)
29th
115 — Harmonic voltage: Value (unsigned char)
The table below shows the format (328) "Status of the switch" that transfers the data the
BSS has collected via a micro switch.
Table 8- 70 Format (328) "Status of the switch"
Byte Bit Meaning
0 0 Switch is off
0 1 Switch is on
0 2 Switch has tripped (tripped signaling switch)
0 3 Switch is ready
0 4 Spring energy store is compressed
0 5 Switch on 1st auxiliary trip unit actuated
0 6 Switch on 2nd auxiliary trip unit actuated
The table below shows the format (331) Trip class (VL only). The value of the trip class is
adapted to the connected motor.
Table 8- 71 Format (331) "Trip class (VL only)"
Byte Value Meaning
0 5 3-second delay @ 7.2 x rated current
0 10 6-second delay @ 7.2 x rated current
0 15 9-second delay @ 7.2 x rated current
0 20 12-second delay @ 7.2 x rated current
0 30 18-second delay @ 7.2 x rated current
The table below shows the format (343) "I
2
t characteristic for S" via which the I
2
t
characteristic is switched on and off.
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