Chapter 6 Function Introduction Shenzhen Hpmont Technology Co., Ltd
―92― HD20 Series Inverters User Manual
6.2.18 Group F17 SCI Communication Parameters
Refer to Appendix B (Page 151) for the communication function.
No. Name Description Range
factory setting
F17.00 Data format 0
5
0
0: 1-8-2 format, no parity, RTU.
1: 1-8-1 format, even parity, RTU.
2: 1-8-1 format, odd parity, RTU.
3: 1-7-2 format, no parity, ASCII.
4: 1-7-1 format, even parity, ASCII.
5: 1-7-1 format, odd parity, ASCII.
F17.01 Baud rate selection 0
5
3
0: 1200bps.
1: 2400bps.
2: 4800bps.
3: 9600bps.
4: 19200bps.
5: 38400bps.
F17.02 Local address 0
247
2
When F17.02 = 0, it means broadcast address.
F17.03 Host PC response time 0
1000
0ms
Time threshold for detecting communication status
When the time at no communication data exceeds the setting time of F17.04, it will be considered as
communication time out.
• When F17.04 = 0, it will not detect communication time out.
Detecting time at communication error
When the time at communication error exceeds the setting time of F17.05, it will be considered as
communication error detection.
• When F17.05 = 0, it will not detect the communication error.
Action selection at communication time out
F17.07 Action selection at communication fault 0
3
3
Action selection at communication peripheral device fault
F17.06 defines the action selection at commmunication time out.
F17.07 defines the action selection at communication fault.
In the communication command setting mode, F17.08 will define the action selection when
communication peripheral device fault is alarmed.
0: Coast to stop.
1: Emergency stop.
2: Decelerate to stop.
3: Continue to run.
F17.09 Communication write function parameter of storage EEPROM
0,1
1
0: Communication write function parameter without storage EEPROM.
1: Communication write function parameter with storage EEPROM.
Note: Only when using the communication write function parameter, and function code is 0x06
or 0x10, will F17.09 be valid. Refer to Protocol Function of Appendix B for details.
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