User Manual of A90 Series Inverter
296
machine. The function code, length and CRC of the data are correct.
Fig. 0-4 shows the data sending segment (t
send
), sending end segment (t
wait1
),
75176-to-sending wait segment (t
wait2
), data return segment (t
return
), and 75176-to-receiving
wait segment (t
wait3
).
tsend twait 1
twait 2
treturn
twait 3
t
Fig. 0-4 Timing Parse Diagram of Complete Data Frame
12.4.4 Communication timeout
The communication time interval
△
t is defined as the period from the previous
reception of valid data frames by the slave station (inverter) to next reception of valid data
frames. If
△
t is greater than the set time (depending on the function code F10.03; this
function is invalid if set to 0), it will be regarded communication timeout.
Fig. 0-5 Schematic Diagram of Network Link Data 485
12.5 Examples
1)
Forward running of inverter
Send: 01 41 70 0000 01 E6 C5
Return:
01 41 70 0000 01 E6 C5 (normal)
Return:
01 C1 04 70 53 (exception, assuming a slave fault)
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