Mitsubishi Inverter Protocol (Computer Link Communication) - Mitsubishi Electric FR-F740 EC Instruction Manual

Communication operation and setting
6.18.6

Mitsubishi inverter protocol (computer link communication)

You can perform parameter setting, monitor, etc. from the PU connector or RS485 terminals of
the inverter using the Mitsubishi 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. 6-60:
6 - 268
Description
Mitsubishi protocol (computer link)
EIA-485 (RS485)
1 : N (maximum 32 units), setting is 0 to 31 stations
PU connector Selected from among 4800/9600/19200 and 38400bps
Can be selected from 300, 600, 1200, 2400, 4800, 9600,
RS485 terminal
19200 and 38400bps
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
Communication specifications
Parameter
Related
Parameters
Pr. 551
—
Pr. 117
Pr. 331
Pr. 118
Pr. 332
—
—
Pr. 119
Pr. 333
—
Pr. 119
Pr. 333
Pr. 120
Pr. 334
—
Pr. 124
Pr. 341
Pr. 123
Pr. 337