PARAMETERS
127
[Data sending time calculation expression]
1
Communication speed
(bps)
×
Number of data
characters
(Refer to page 124)
×
Communication
specification
(Total number of bits)
(See below)
=
Data sending
time (s)
"
Communication specification
Name
Number of Bits
Stop bit length
1 bit
2 bits
Data length
7 bits
8 bits
Yes
1 bit
Parity check
No
0 bits
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.
30
+
31
+
45
+
31
+
31
+
30
+
37
+
41
+
44
=
1F4
E
N
Q
1
0
1
E
1
0
7
A
D
F
4
H05
H30 H31
H31
H45 H31
H30 H37 H41 H44 H46 H34
S
T
X
0
1
1
7
0
3
0
H02
H30 H31
H37
H31 H37
H30 H03 H33 H30
E
T
X
7
(Example 1)
Computer
→
inverter
ASCII code
→
(Example 2)
inverter
→
Computer
ASCII code
→
Station
number
Instruction
code
Data
Sum
check
code
H
H
H
H
H
H
H
H
H
H
H
30
+
31
+
31
+
37
+
37
+
30
=
130
H
H
H
H
H
H
Station
number
Sum
check
code
Read time
←
Binary code
Wait
ing
ti
m
e
Sum
Sum
←
Binary code
4
