Mitsubishi Electric F930GOT-BWD-E, Руководство пользователя

Страница: 45 / 274

Graphic Operation Terminal F930GOT Introduction 1
1-31
• Command
Use the following commands for communication with the GOT.
- Read : Read the data stored in the GOT.
"0" at the head indicates a read command.
Read address:
Using ASCII codes, specify the head address (hexadecimal) of the data stored in the
GOT. The read address should be specified in turn from the upper digit.
Size:
In the unit of byte, specify the size of the read data (01H to FFH). The maximum allow-
able 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:
The data stored in the specified address is stored in turn.
One-byte data is converted into ASCII codes, and sorted in the order of upper digit and
lower digit.
CR Size STX Read address '0' Type 2 may be used.
Command
CR STX
žžžžžžžžžžžžžžžžžžžžžžžžžžžžžžžžž
Data 1
Response
Data 2
Example: When 2-byte data is read from the address 12EH (format = Type 2)
STX
Command
'0' '0' '1' '2' 'E' '0' '2' ETX '6' 'D'
02H 30H 30H 31H 32H 45H 30H 03H 36H 44H 32H
Sum = 6DH
STX
Response
'5' 'A' '3' '8' ETX 'E' '4'
02H 35H 41H 33H 38H 03H 45H 34H
Sum = E4H
Memory inside GOT
5A
38
12E
12F
Each data is expressed
in hexadecimal.