MITSUBISHI ELECTRIC FR-S520 - Manual (Page 132)

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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
(setting 10ms) (12ms)
REMARKS
When communication parameter n7 "waiting time setting"
≠
‚ "- - -", create the
communication request data without "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 121)
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