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Mitsubishi Electric GOT1000 Series Connection Manual Page 215

Microcomputers, modbus products, peripherals.
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Error code list
The following shows error code, error contents, cause, and measures.
Error code
Device point error
0002
H
The specification of device range to read/write has error.
Request (command)/Response (response) type code error
0050
Code other than the specified value is set for command/
H
response type.
Device error
0056
H
A non-existent device has been specified.
Device point error
• The command number of points specification from the
microcomputer exceeds the maximum number of points
processed at each process (number of points processed in
one communication).
• The start address (head device number) to specified
0057
H
number of points exceeds the maximum address (device
number, step number) for each process.
When reading data which the command bit length is longer
than the specification, the set number of write data points
differs from the specified number of points value.
• The command start address (head device number, start
step number) specification from the microcomputer
exceeds the range that can be specified.
• Value outside the GOT parameter setting range is specified
in the microcomputer program and file register (R) reading/
0058
H
writing.
• Word device is specified in the command for bit device.
• In the command for word device, a bit device start number
is specified in other than hexadecimal.
Request content cannot be analyzed because the text length
00A1
H
or request data length is too short.
00A2
Request cannot be processed.
H
C0D6
The specification of network No. and station No. have error.
H
Description
3. MICROCOMPUTER CONNECTION (ETHERNET)
Action
• Check the specified head device and number of points, and correct it.
(
3.3 Device Data Area)
• Check the command/response type set in the microcomputer and correct
it.
• Check the devices that can be used and the device ranges.
(
3.3 Device Data Area)
• Correct the specified number of points, or the start address (device
number).
(
3.3 Device Data Area)
• Check the command data length and set the data again.
• Correct the values to values that can be specified in each process.
• Correct the command or the specified device.
• Review the text length or the head request data length.
• Correct the request content and command.
• Review the network No., station No. specification method.
3.4 Message Formats
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