Mitsubishi Electric FR-A700 EC, Инструкция по эксплуатации

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Communication operation and setting Parameter
6 - 454
●
Response time
Formula for data sending time:
The communication specifications are listed in the table below:
The data check time related to different functions is shown in the table below:
I001327E
Fig. 6-224: Response time
Data
sending time [s]
=
1
×
Number of data
characters
(refer to page 6-450)
×
Communications specifications
(total number of bits)
Communication speed
(Baudrate)
Name Number of Bits
Stop bit length 1 bit
2 bits
Data length 7 bit
8 bits
Parity check Yes 1 bit
No 0 bits
Tab. 6-137: Communication specifications
NOTES In addition to the above, 1 start bit is necessary.
Minimum number of total bits: 9 bits. Maximum number of total bits: 12 bits.
Function Data Check Time
Various monitors, run command, frequency setting
(RAM) < 12ms
Parameter read/write, frequency setting (EEPROM) < 30ms
Parameter clear/all clear < 5s
Reset command — (no answer)
Tab. 6-138: Data check time
Computer
⇓
Data flow
Inverter
Inverter
⇓
Data flow
Computer
Data sending time (Refer to the following formula)
Inverter data processing time =Waiting time+Data check time
(setting
×
10ms) (Depends on the
instruction code
(see Tab. 6-138))
Time
Data sending time (Refer to the following formula)
10ms or more necessary