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2
.14.1 Communication settings to ,
Communication-related parameters
Parameter Name
Factory
Setting
<NA, EC
version>
Setting
Range
Remarks
Reflection
Timing
n1 (331)
Communication
station number
0 0 to 31 After reset
n2 (332)
Communication
speed
192
48, 96,
192
After reset
n3 (333) Stop bit length 1
0, 1, 10,
11
After reset
n4 (334)
Parity check
presence/
absence
2 0, 1, 2 After reset
n5 (335)
Number of
communication
retries
1
0 to 10,
- - -
Immediately
n6 (336)
Communication
check time
interval (*1)
0s
<- - ->
(*2)
0, 0.1 to
999s,
- - -
Immediately
n7 (337)
Wait time
setting
- - -
0 to 150ms,
- - -
After reset
n11 (341) CR/LF selection 1 0, 1, 2
Setting is enabled
when Pr. 30 = "1"
After reset
*1. To make communication, set any value other than 0 in the communication
parameter n6 "communication check time interval".
*2. Factory setting of NA and EC versions.
The parameter numbers within parentheses are those for use of the parameter unit
(FR-PU04).
Refer to page 177 for the instruction codes.
Communication specifications
Item Computer
Conforming standard RS-485 Standard
Number of inverters
connected
1:N (max. 32 inverters)
Communication speed Selected between 19200, 9600 and 4800bps
Control protocol Asynchronous
Communication method Half-duplex
Character system ASCII (7 bits/8 bits) selectable
Stop bit length Selectable between 1 bit and 2 bits.
Terminator CR/LF (presence/absence selectable)
Parity
check
Selectable between presence (even/odd) and absence
Communication
specifications
Check
system
Sumcheck Presence
Waiting time setting Selectable between presence and absence