Toshiba TOSVERT VF-S11 Gebrauchsanleitung

E6581222

64

Appendix 2 Response time

The communication response time can be calculated from data communication time and inverter
processing time.

   

When wishing to know the communication response time, calculate using the fol-

lowing 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

<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 20ms

Inverter 

→ PC

Data transmission time

Response time

PC 

→ Inverter

Data transmission time

Data processing time of inverter