Mitsubishi Electric 800 Series Instruction Manual page 42

NOTE
• When Pr.337 (Waiting time setting) ≠ "9999", create a communication request data without "waiting time" in the data
format. (The number of characters decreases by 1.)
• The data check time varies depending on the instruction code. (Refer to
• Sum check code
The sum check code is a 2-digit ASCII (hexadecimal) representing the lower 1 byte (8 bits) of the sum (binary) derived from
the checked ASCII data.
(Example 1)
Computer → Inverter
ASCII Code →
∗When the Pr.337 (Waiting time setting) ≠ "9999", create the communication request
data without "waiting time" in the data format. (The number of characters decreases by 1.)
(Example 2)
Inverter → Computer
ASCII Code →
Station Instruction
ENQ
number code
0 1 E 1 1
H05 H30 H31 H45 H31 H31 H30 H37 H41 H44
↓
H30+H31+H45+H31+H31+H30+H37+H41+H44
= H1F4
Sum
Station
STX Data read
number
0 1 1 7 7
H02 H30 H31 H31 H37 H37 H30
↓
H30+H31+H31+H37+H37+H30
= H130
Sum
page 43.)
Sum
Data check
code
0 7 A D F 4 ← Binary code
H46 H34
Sum
ETX check
code
0 3 0
← Binary code
H03 H33 H30
41
PARAMETER
4