Appendix 2 Response Time - Toshiba Tosvert VF-S15 Series Instruction Manual

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
following as a reference
Data transmission time
PC  Inverter

Data transmission time
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>
Data

Data processing time of inverter
Data processing time: maximum 10ms
Note: If it sets EEPROM, maximum become 50ms. See "9. Parameter data" about EEPROM.
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Interval corresponding to 3.5 bytes
Resp onse time
1

transmissi on time
baud rate
1
 
transmissi on time
19200
Data processing time of inverter
Data transmission time
Inverter  PC

number of bytes transmitte
 
8 11 4.6ms
72
E6581913

d number of bits