Senlan Hope800 Series Manual page 133

0: 8,N,1 (1 start bit, 8 data bits, no parity check, 1 stop bit)
Setting 1: 8,E,1 (1start bit, 8 data bits, even check, 1 stop bit)
range 2: 8,O,1 (1 start bit, 8 data bits, odd check, 1 stop bit)
3: 8,N,2 (1 start bit, 8 data bits, no parity check, 2 stop bits)
FF-02
0: 1200bps
Setting
5: 38400bps
range
Note: 0~5 for Modbus and USS, while 0~9 for CAN
FF-03
Setting 0~247
range Note: 1~247 for Modbus, 0~31 for USS, and 0~127 for CAN
FF-04
Setting
0.1~600.0s
range
FF-05
Setting
0~1000ms
range
FF-06
0: No action
2: Alarm and coast to a stop
Setting
3: Alarm and run according to F0-00
range
4: Alarm and run at upper-limit frequency
5: Alarm and run at lower-limit frequency
FF-07 USS message PZD word number
Setting
0~4
range
FF-08 Communication reference magnification
Setting
0.001~30.000. Frequency reference=FF-80×communication reference frequency
range
 Hope800 inverter's RS485 Modbus protocol comprises three layers: Physical layer, Data Link layer and
Application layer. The former two layers employ the RS485-based Modbus protocol. The application
layer controls the run/stop of the inverter and the parameter reading and writing and so on.
 Modbus is a master-slave protocol. The communication between the master and slave falls into two types:
master requests, slave responds; master broadcasts, slave doesn't respond. The master polls the slaves.
Any slave can't send messages without receiving the command from the master. The master may resend
the command when the communication is not correct. If the master doesn't get a response within given
time, the slave polled is considered to be lost. The slave sends a piece of error information to the master
if it can not implement a message.
 Communication only changes RAM values. If a parameter in RAM is to be written into EEPROM, the
communication variable "EEP write command" (Modbus address is 3209H) needs to be changed to 1 by
communication.
Method of addressing the inverter parameters: among the 16 bits of the Modbus parameter address, the
upper 8 bits represent the group number of a parameter, and the lower 8 bits represent the serial number
of the same parameter in the group. For example, the address of the parameter F4-17 is 0511H. The
group number is 50(32H) for communication variables (control word, status word, etc.).
Note: Communication variables include inverter parameters which can be accessed to by communication, as
well as communication dedicated command variables and status variables. The menu codes correspond
to the group numbers of parameters according to the following table.
Baud rate
1: 2400bps
6: 57600bps
Local address
Overtime detection time
Response delay
Overtime action
1: Alarm
Default
2: 4800bps 3: 9600bps
7: 115200bps 8: 250000bps
Default
Default
Default
Default
Default
Default
6 Parameter Description
3 Change
4: 19200bps
9: 500000bps
1 Change
10.0s Change
5ms Change
0 Change
2 Change
1.000 Change
×
×
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×
×
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