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PARAMETERS
113
5) Waiting time
Specify the waiting time between the receipt of data at the inverter from the computer and the transmission
of reply data. Set the waiting time in accordance with the response time of the computer between 0 and
150ms in 10ms increments (e.g. 1 = 10ms, 2 = 20ms).
Computer
↓
Inverter
Inverter
↓
Computer
Inverter data processing time
= waiting time + data check time
(set value
×
10ms) (12ms)
Note: If the Pr. 123 "waiting time setting" value is not 9999, create the communication request data with no
"waiting time" in the data format. (The number of characters is decremented by 1.)
6) Response time
Computer
Inverter
Inverter
Computer
(refer to the following calculation expression)
Inverter data processing time = waiting time + data check time
(set value 10ms) (12ms)
10ms or
more required
10ms or
more required
(refer to the following calculation expression)
STX
ACK ENQ
Computer
Inverter
Inverter
Computer
(refer to the following calculation expression)
Inverter data processing time = waiting time + data check time
(set value 10ms) (12ms)
10ms or
more required
Data sending time
(refer to the following calculation expression)
ENQ
Data sending time
Data sending time
Data sending time
[Data sending time calculation expression]
1
Communication speed
(bps)
Number of data characters
(Refer to page 111)
Communication specification
(Total number of bits)
(See below)
= Data sending time (s)
Communication specification
Name Number of Bits
Stop bit length
1 bit
2 bits
Data length
7 bits
8 bits
Yes 1 bit
Parity check
No 0 bits
In addition to the bits in the above table, 1 bit is required for the start bit.
Minimum total number of bits ... 9 bits
Maximum total number of bits ... 12 bits
4