Toshiba TOSVERT VF-AS1 Manuel D'Instructions
E6581315
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Appendix 2 Response time
The communication response time can be calculated from data communication time and inverter
processing time.
processing time.
When wishing to know the communication response time, calculate using the
following as a reference
Data transmission time
bits
of
number
d
transmitte
bytes
of
number
rate
baud
1
time
on
transmissi
Data
×
×
=
* Number of bits = start bit + data frame length + parity bit + stop bit
* Minimum number of bits = 1 + 8 + 0 + 1 = 10 bits
* Maximum number of bits = 1 + 8 + 1 + 2 = 12 bits
* Minimum number of bits = 1 + 8 + 0 + 1 = 10 bits
* Maximum number of bits = 1 + 8 + 1 + 2 = 12 bits
<An example of the calculation of the transmission time: 19200 bps, 8 bytes, 11 bits>
4.6ms
11
8
19200
1
time
on
transmissi
Data
=
×
×
=
Data processing time of inverter
Data processing time: maximum 8 ms
Inverter
→ PC
Data transmission time
Response time
PC
→ Inverter
Data transmission time
Interval corresponding to 3.5 bytes
Data processing time of inverter (Approx. 8 ms)
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