Data Transfer Format (Protocol); Character Code List - Mitsubishi Electric F920GOT-K Hardware Manual

GOT-F900 SERIES (CONNECTION)
14.5.3

Data Transfer Format (protocol)

The table below explains the data transfer formats (protocols) 1 and 2 when commands are used.
Selected protocol
1:1
Format while
data is
transmitted
(microcomputer
→ GOT)
Two or
more GOT
units
When read
command
Format of
is
response data
transmitted
in normal status
(GOT →
When write
microcomputer)
command
is
transmitted
Format of response data
when error has occurred
(GOT → microcomputer)
Format of interrupt output
(GOT → microcomputer)
14.5.4

Character Code List

The following characters are available in statements. Interrupt codes include unused codes.
STX
ETX
CR
ACK
NAK
'0'~'9'
'A'~'F'
Format 1
Command
STX Data
'0' 30H
'1' 31H
(02H)
'3' 33H
'4' 34H
<Available in versions in which connection
of two or more GOT units is enabled>
Command
STX Station
'A' 41H
No.
'B' 42H
(02H)
'D' 44H
'E' 45H
STX Data
(02H)
Character code
(hexadecimal)
02
H
03 Interrupt code
H
0D
H
06
H
15
H
30~39
H
41~46
H
Command
STX
CR '0' 30H
'1' 31H
(0DH) (02H)
'3' 33H
'4' 34H
<Available in versions in which connection of two
or more GOT units is enabled>
Command
STX
'A' 41H
Data CR
'B' 42H
(02H)
'D' 44H
(0DH)
'E' 45H
STX
CR
(02H)
(0DH)
ACK
(06H)
NAK
(15H)
Interrupt
output data
Character code (hexadecimal)
80F~FF (Valid only when data length is 8 bits)
H
Connection of Microcomputer 14
Format 2
Data ETX Sum
check
(03H)
Sum check range
Station Data ETX
No.
(03H)
Sum check range
Data ETX
Sum
check
(03H)
Sum check range
20~2F
H
50~7F
H
14-15
11
12
13
Sum
check
14
15
16
17
18
19
20