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4-64 5708009-C
Advanced Energy
®
Bytes 0 and 1 of the upload packet contain information about the Apex generator; this
information appears as status bits (or status “flags”). The following table defines these
status bits:
In the first status byte, bit 13 (the active toggle bit) indicates, the status of the Profibus
interface. After the Apex generator has powered up, this bit’s continuous change
indicates that the Profibus interface is ready. During operation, a cessation of this
change indicates that a communication problem exists.
4 Forward power low
5 Forward power high
6 Reflected power low
7 Reflected power high
8 Data byte (LSB)
9 Data byte
10 Data byte
11 Data byte
12 Data byte (MSB)
13 Data field definition
Table 4-10. Upload Status Bytes
First Status Bit 8 = Control mode (with bit 9)
9 = Control mode (00 = User, 10 = Profibus)
10 = Setpoint status OK
11 = Reserved
12 = End of Target Life (EOTL)
13 = Active toggle bit
14 = Bus fault (high or low)
15 = Reserved
Second Status Bit 0 = Reserved
1 = Overtemperature condition
2 = Interlock mechanism open
3 = Momentary power failure
4 = Reserved
5 = Contactor not closed
6 = Reserved
7 = Output is on
Table 4-9. Configuration of Profibus Upload Packet (Inbytes)
Byte Description