Hitachi S1 Series Basic Manual page 154

S1 series standard inverter
Function
Name
code
Data bit check
P14.02
setup
Communication
P14.03
response delay
Communication
P14.04
timeout period
Detailed parameter description
4: 19200BPS
5: 38400BPS
6: 57600BPS
7: 115200BPS
Note: Baud rate of the upper computer must be
the same with the inverter; otherwise,
communication cannot be performed. The larger
the baud rate, the faster the communication
speed.
The data format of upper computer must be the
same with the inverter; otherwise, communication
cannot be performed.
0: No parity check (N, 8, 1) for RTU
1: Even parity (E, 8, 1) for RTU
2: Odd parity (O, 8, 1) for RTU
3: No parity check (N, 8, 2) for RTU
4: Even parity (E, 8, 2) for RTU
5: Odd parity (O, 8, 2) for RTU
0–200ms
It refers to the time interval from when the data is
received by the inverter to the moment when the
data is sent to the upper computer. If the
response delay is
processing time, the response delay will be
subject to system processing time; if the response
delay is longer than the system processing time,
data will be sent to the upper computer at a delay
after data process is done by system.
0.0 (invalid) –60.0s
This parameter will be invalid if it is set to 0.0;
When it is set to a non-zero value, if the time
interval between current communication and the
next communication exceeds the communication
timeout period, the system will report "485
communication fault" (CE).
Under common situations, it is set to 0.0. In
systems which have continuous communication,
users can monitor the communication condition
by setting this parameter.
-149-
less than the system
Default
Modify
value
○
1
○
5
○
0.0s