Et system EAC/AFV, Manual

Page: 20 / 25

RS 485 Interface
16 ET System electronic GmbH
Command Function Command example
Application Settings
General information (AC) 0x20
Send command:
0x02 address
0x20 function code
0x04 command length
0x08 0x98 current output voltage (220 V x 10)
0x01 0xF4 current output frequency (50 Hz x 10)
0x40 CRC Checksum high byte
0xb9 CRC Checksum low byte
Answer from unit:
0x02 0x50 0x01 0x00 0x00 0x1D
Note: The command RUN has to be send again if voltage or current were
adjusted before.
Adjustment mode “STEP“ 0x21
Send command:
0x02 address
0x21 function code
0x0A command length
0x00 0x01 Group number
（
1-24
）
0x08 0x98 output voltage of this group
（
220V×10
）
0x01 0xF4 output frequency of this group
（
50Hz×10
）
0x00 0x00 0x00 0x0A execution time of this group
（
10second
）
0x7C CRC Checksum high byte
0xF1 CRC Checksum low byte
Answer from unit:
0x02 0x50 0x01 0x00 0x00 0x1D
Adjustment mode “GRADUAL“ 0x22
Send command:
0x02 address
0x22 function code
0x0E command length
0x00 0x01 Group number (1-12)
0x04 0x4C output voltage of this group (110 V x 10)
0x01 0xF4 output frequency of this group (50 Hz x 10)
0x08 0x98 output voltage of this group (220 V x 10)
0x02 0x58 output frequency of this group (60 Hz x 10)
0x00 0x00 0x00 0x0A execution time of this group (10 Sekunden)
Answer from unit:
0x02 0x50 0x01 0x00 0x00 0x1D
Voltage adjustment 3phase (AC) 0x23
Send command:
0x02 address
0x23 function code
0x08 command length
0x08 0x98 current R-phase output voltage (220 V x 10)
0x08 0x98 current S-phase output voltage (220 V x 10)
0x04 0x4C current T-phase output voltage (110 V x 10)
0x01 0xF4 current output frequency (50 Hz x 10)
0x63 CRC Checksum high byte
0xF2 CRC Checks
Answer from unit:
0x02 0x50 0x01 0x00 0x00 0x1D
Adjustment of application parameters
Mode “STEP“ Loop adjustment 0x16
Send command:
0x02 address
0x16 function code
0x06 command length
0x00 0x01 starting group number of step-mode loop
0x00 0x18 ending group number of step-mode loop
0x00 0xFF loop number
0x09 CRC Checksum high byte
0x31 CRC Checksum low byte
Answer from unit:
0x02 0x50 0x01 0x00 0x00 0x1D
Mode “GRADUAL“ Loop adjustment 0x17
Send command:
0x02 address
0x17 function code
0x06 command length
0x00 0x01 starting group number of Gradual-mode loop