Formats 5(Digital Electronics Corporation's Memory Link Method) - Mitsubishi Electric GOT2000 Series Connection Manual

3.4.5

Formats 5(Digital Electronics Corporation's memory link method)


Basic format of data communication
This is the same format as the protocol of the Digital Electronics Corporation's memory link method.
For details of the basic format of data communication, refer to the following manual:
The connection manual of the device manufactured by Digital Electronics Corporation
This section describes items whose settings differ from the protocols of the Digital Electronics Corporation's memory
link method and dedicated commands for a microcomputer connection of GOT.
Example:Request message for the batch read in word units (R) command in format 5
(Digital Electronics Corporation's memory link method)
B
42
H

Details of data items in message format
POINT POINT POINT
Data code during communication
Communication is performed in ASCII code.
(1) Command
Specifies the contents to access from the host to GOT.
The command is converted to a 1-digit ASCII code (Hex) and transmitted.
For details of the commands that can be used, refer to the following.
3.4.2 List of commands
(2) Address
Specifies the head No. of the device data to be read/written.
The address notated in hexadecimal is converted to a 4-digit ASCII code (Hex) and transmitted from the upper
digit.
For details of the device range that can be accessed, refer to the following.
3.3 Device Data Area
(3) Number of points
Specifies the number of device data to be read/written. (Setting range: 1 to 40
The address notated in hexadecimal is converted to a 4-digit ASCII code (Hex) and transmitted from the upper
digit.
(4) Error code
This is the response message at faulty communication appended with error contents.
The address notated in hexadecimal is converted to a 2-digit ASCII code (Hex) and transmitted from the upper
digit.
For details of error codes generated in format 5 (Digital Electronics Corporation's memory link method), refer to
the following:
■ Error code list
Data length
00 00 00 00 00 00
H H H H H H
3. MICROCOMPUTER CONNECTION (ETHERNET)
Number
Com-
ESC Address
of points
mand
R
06 1B 52 00 64 00
H H H H H H
H
3.4 Message Formats
02
H
)
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