Sinee EM500 - Page 258

EM500 Open-Loop Vector Control Inverter User Manual
258
No.
Function
Range
Unit
Default
Type
F10.02
Modbus
Data
Format
0: 1-8-N-1 (1 start bit + 8 data bits
+1 stop bit)
1: 1-8-E-1 (1 start bit + 8 data bits
+ 1 even parity + 1 stop bit)
2: 1-8-O-1 (1 start bit + 8 data bits
+ 1 odd parity + 1 stop bit)
3: 1-8-N-2 (1 start bit + 8 data bits
+2 stop bits)
4: 1-8-E-2 (1 start bit + 8 data bits
+ 1 even parity +2 stop bits)
5: 1-8-O-2 (1 start bit + 8 data bits
+ 1 odd parity +2 stop bit)
0
〇
When transmitting data via Modbus protocol of RTU format, inverter supports 6
different data formats according to data combinations. When transmitting data via
Modbus protocol of RTU format, inverter supports 6 different data formats according to
data combinations.
Start bit
Valid data
Parity
Stop bit
1
7
6
5
4
3
2
1
0
N/O/E
1
If F10.02=0, it means that present data format is 1 start bit + 8 data bits + no parity
+1 stop bit
★
N (NONE), no parity; E (EVEN), even parity; O (ODD), odd parity.
Inverter also supports the functions of communication overtime and response delay,
when it is networked for communication with Modbus protocol, in order to meet various
requirements.
No.
Function
Range
Unit
Default
Type
F10.03
Modbus
Overtime
0.0 - 60.0, 0.0: Disabled (also
works for master - slave
system)
s
0.0
●
As shown in Figure 7-30, the communication interval
△
t refers to the period from
the previous receipt of a valid data frame by slave (inverter) to the receipt of a valid data
frame again. If △t is greater than the set time (see F10.03; this function is disabled if it is
set as 0), this is called “communication overtime”.