Mitsubishi Electric 800 Series Instruction Manual page 54

Rs-485 interface board, rs-485 communication terminals

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NOTE

• Set 65520 (HFFF0) as a parameter value "8888" and 65535 (HFFFF) as "9999".

• For the instruction codes HFF, HEC and HF3, their values are held once written but cleared to zero when an inverter

reset or all clear is performed.

• When a 32-bit parameter setting or monitored value is read and the read value exceeds HFFFF, the reply data will be

HFFFF.

Example) When reading the C3 (Pr.902) and C6 (Pr.904) settings from the inverter of station No. 0.

Computer send data

ENQ 00 FF 0 01 7D

ENQ 00 EC 0 01 79

ENQ 00 5E 0 0A

ENQ 00 60 0 F6

To read/write C3 (Pr.902) or C6 (Pr.904) after inverter reset or parameter clear, execute from (a) again.

Inverter send data

ACK 00

STX 00 0000 ETX 20

Description

Set "H01" in the extended link parameter.

Set "H01" in second parameter changing.

C3 (Pr.902) is read. 0% is read.

C6 (Pr.904) is read. 0% is read.

PARAMETER

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