Mitsubishi Electric GOT2000 Series Connection Manual page 93


Details of data items in message format
POINT POINT POINT
Data code during communication
Communication is performed in ASCII code.
(1) Block No., network No., PLC No., request destination module I/O No. and station No.
Ignored in a microcomputer connection of the GOT.
Specify "00". (The request destination module I/O No. is "0000".)
"00" is converted to a 2-digit ASCII code (Hex) and transmitted from the upper digit.
(The request destination module I/O No. is 4-digit.)
(2) Station No.
Station No. is used to identify the GOT with which the host communicates.(Setting range: 0 to 1F
The address notated in hexadecimal is converted to a 2-digit ASCII code (Hex) and transmitted from the upper
digit.
The GOT processes only commands whose station No. matches the "Host Address (0 to 31)" set at
"Communication Detail Settings". (The message of command whose station No. does not match is ignored.)
For setting method of "Communication Detail Settings", refer to the following.
2.6.1 Setting communication interface (Communication settings)
(3) Command, sub-command
Specifies the contents to access from the host to GOT.
The command is converted to a 4-digit ASCII code (Hex) and transmitted from the upper digit.
For details of the commands that can be used, refer to the following.
2.5.2 List of commands
(4) Device code
Specifies the code by which the device data to be read/written is recognized.
The command is converted to a 2-digit ASCII code (Hex) and transmitted from the upper digit.
For details of the device range that can be accessed, refer to the following.
2.4 Device Data Area
(5) Head device
Specifies the head No. of the device data to be read/written.
The address notated in decimal is converted to a 6-digit ASCII code (Hex) and transmitted from the upper digit.
For details of the device range that can be accessed, refer to the following.
2.4 Device Data Area
(6) Device 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 2-digit ASCII code (Hex) and transmitted from the upper
digit.
When specifying multiple devices as follows, limit the total device points to within 64 points.
(a) When using random read/write command
When setting multiple bit accesses, word accesses or double word accesses, limit the total number of
access points to within 64 points
(b) When using multiple block batch read/write commands
When setting multiple blocks, limit the total number of points of all blocks to within 64 points.
2. MICROCOMPUTER CONNECTION (SERIAL)
2.5 Message Formats
)
H
)
H
2 - 43
2