Mitsubishi F940GOT-SWD-E Operation Manual page 38

Graphic Operation Terminal F940GOT
• Command
Use the following commands for communication with the GOT.
- Read . . . Read the data stored in the GOT.
Command
STX
"0" at the head indicates a read command.
Read address :Using ASCII codes, specify the head address (hexadecimal) of the data
Size
Response
STX
Data
Example: When 2-byte data is read from the address 12EH (format = Type 2)
Command
STX
02H 30H
Response
STX
02H 35H
12EH stores the upper side of the word data D151. 12FH stores the lower side of the
word data D151. The value of D151 is 5A38H (= 23096).
'0' Read Adress
stored in the GOT. The read address should be specified in turn from the
upper digit.
:In the unit of byte, specify the size of the read data (01H to FFH). The
maximum allowable size is 255 bytes. "FFH" indicates 255 bytes.
The size should be specified in the order of upper digit and lower digit (in
ASCII codes). For example, enter "8 + A" to specify 8AH bytes (= 138
bytes).
Data 1 Data 2
:The data stored in the specified address is stored in turn.
One-byte data is converted into ASCII codes, and stored in the order of
upper digit and lower digit.
'0' '0' '1' '2'
30H 31H 32H 45H
'5' 'A' '3' '8' ETX
41H 33H 38H 03H
Size CR
...................
'E' '0' '2' ETX
30H 32H 03H 36H
'E' '4'
45H 34H
Sum = E4H
Type 2 may be used.
CR
'6' 'D'
44H
Sum = 6 DH
Memory inside GOT
12E
12F
Each data is expressed in
hexadecimal.
Introduction 1
5A
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