Communication operation and setting
6.19.4
Mitsubishi inverter protocol (computer link communication)
You can perform parameter setting, monitor, etc. from the PU connector of the inverter using the Mit-
subishi inverter protocol (computer link communication).
Communication specifications
Item
Communication protocol
Conforming standard
Number of inverters connected
Communication
speed
Control protocol
Communication method
Communication
specifications
Waiting time setting
Tab. 6-72: Communication specifications
6 - 246
Description
Mitsubishi protocol (computer link)
EIA-485 (RS-485)
1 : N (maximum 32 units), setting is 0 to 31 stations
PU connector
Selected from among 4800/9600/19200 and 38400 bps
Asynchronous system
Half-duplex system
Character
ASCII (7 bits or 8 bits can be selected)
system
Start bit
1 bit
Stop bit length
1 bit or 2 bits can be selected
Parity check
Check (even, odd) or no check can be selected
Error check
Sum code check
Terminator
CR/LF (presence or absence can be selected)
Selectable between presence and absence
Parameter
Related
Parameters
Pr. 549
—
Pr. 117
Pr. 118
—
—
Pr. 119
—
Pr. 119
Pr. 120
—
Pr. 124
Pr. 123