Mitsubishi Electric FR-E 500 Instruction Manual page 142

[Data sending time calculation expression]
1
Communication speed
(bps)
" Communication specification
Name
Stop bit length
Data length
Yes
Parity check
No
In addition to the bits in the above table, 1 bit is required for the start bit.
Minimum total number of bits ... 9 bits
Maximum total number of bits ... 12 bits
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
Number of data
×
characters
(Refer to page 124)
Number of Bits
1 bit
2 bits
7 bits
8 bits
1 bit
0 bits
E
Station
N number
Q
0
ASCII code →
H05 H30 H31
H
30 + 31 + 45 + 31 + 31 + 30 + 37 + 41 + 44
H
=1F4
Sum
S
Station
T
number
X
0
ASCII code →
H02 H30 H31
H
30 + 31 + 31 + 37 + 37 + 30
H
=130
Sum
127
Communication
specification
×
(Total number of bits)
(See below)
Instruction
Data
code
1
1 E 1 0 7 A
H45 H31 H31 H30 H37 H41 H44 H46 H34
H H H H H H H
Sum
E
check
Read time
T
code
X
1 1 7 7 0 3
H31 H37 H37 H30 H03 H33 H30
H H H H H
PARAMETERS
Data sending
=
time (s)
Sum
check
code
←Binary code
D F 4
H
←Binary code
0
4