Mitsubishi FR-E500 Series Instruction Manual page 120

7) Sum check code
The sum check code is 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
(Example 2)
inverter → Computer
8) Error code
If any error is found in the data received by the inverter, its definition is sent back to
the computer together with the NAK code. (Refer to page 110.)
Note: 1. When the data from the computer has an error, the inverter will not accept
that data.
2. Any data communication, e.g. run command, monitoring, is started when the
computer gives a communication request. Without the computer's command,
the inverter does not return any data. For monitoring, therefore, design the
program to cause the computer to provide a data read request as required.
3. When accessing the parameter settings, data for link parameter expansion
setting differs between the parameters as indicated below:
Link
parameter
expansion
setting
E
Station
N number
Q
0
ASCII code →
H05 H30 H31
H
30 + 31 + 45 + 31 + 31 + 30 + 37 + 41 + 44
=1F4
Sum
S
Station
T
number
X
0
ASCII code →
H02 H30 H31
H
30 + 31 + 31 + 37 + 37 + 30
=130
Sum
Instruction
Code
H00: Pr. 0 to Pr. 96 values are accessible.
Read H7F H01: Pr. 100 to Pr. 156 values are accessible.
H02: Pr. 160 to Pr. 196 and Pr. 232 to Pr. 250
Write HFF H03: Pr. 345 to Pr. 348 values are accessible.
H09: Pr. 990, Pr. 991 values are accessible.
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Instruction
Data
code
1
1 E 1 0 7
H45 H31 H31 H30 H37 H41 H44 H46 H34
H H H H H H
H
E
check
Read time
T
X
1 1 7 7 0
H31 H37 H37 H30 H03 H33 H30
H H H H H
H
Data
values are accessible.
105
PARAMETERS
Sum
check
code
←Binary code
A D F 4
H H
Sum
code
←
Binary code
3 0