Mitsubishi Electric GT14 User Manual page 1414

(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.
(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.
(5) Head device
Specifies the head No. of the device data to be read/written.
Data 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.
(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 number of devices 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.
(7) Year, month, day, hour, minute, second and day of the week data
Specifies year, month, day, hour, minute, second, and day of the week to be read/set to the GOT clock data.
Data notated in decimal is converted to a 2-digit ASCII code (Hex) and transmitted from the upper digit.
(8) Error code
This is the response message at faulty communication appended with error contents.
The address notated in hexadecimal is converted to a 4-digit ASCII code (Hex) and transmitted from the upper
digit.
For details of error codes that are generated in formats 7 to 10 (QnA compatible 3C/4C frame), refer to the
following:
POINT POINT POINT
When connecting a microcomputer, etc. that uses the MC protocol of the Q/QnA series serial communication
module with the GOT
When connecting a microcomputer, etc. that uses the MC protocol of the Q/QnA series serial communication
module with the GOT, correct the commands to be used and the device ranges to match the GOT specifications.
61 - 40
61. MICROCOMPUTER CONNECTION (SERIAL)
61.5 Message Formats
61.5.2 List of commands
61.4 Device Data Area
61.4 Device Data Area
 Message format(1)Read clock data (1901) command
 Message format(2)Set clock data (0901) command
 Error code list
)
H