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19.5 Message Formats
19.5.3 Formats 1, 2 (GOT-A900 series microcomputer connection)
Interrupt output
• To set so that interrupts are not issued, set SM52 (interrupt code output inhibit
flag) ON. ( Section 19.4.6 SM devices)
• To issue interrupts, set the data length to "8 bits" at "Communication Detail
Settings". ( Section 19.6.3 Setting communication interface
(Communication settings))
• When "7 bits" is set, the MSB (8th bit) is ignored. (Example: FF
H 7FH)
4 Error code list
In the case of format 2 (GOT-A900 series microcomputer connection (format 2)), the error contents
(error code) are appended to the response message during faulty communication.
The following shows error code, error contents, cause, and measures.
5 Precautions
(1) Batch reading/writing crossing over different devices
When using the batch read (RD) or batch write (WD) command, do not batch read/write crossing
over the different devices.
This will cause an error response.
Error code Description Measures
06H
Sum check error
The sum check code created from received data differs
from the sum check code in the receive data.
• Review the contents of the message to transmit.
10H
Command error
An unsupported command was used.
• Review the contents of the message to transmit.
• Check the command in the message. ( Section 19.5.2 List of
commands)
11H
Message length error
The message exceeds the upper limit of the data
length that GOT can received.
• Review the contents of the message to transmit.
• Check the data length of the message. (Data length of the data
section, etc.)
12H
Communication message error
EXT was not found within the upper limit of the receive
buffer.
• Check the communication cable and communication module
attachment.
• Check the settings of "Communication Detail Settings".
• Review the contents of the message to transmit.
15
H
Clock data setting error
The setting value of clock data has error.
• Review the contents of the message to transmit.
• Check whether the non-existent data is set (e.g. setting "07" at the
day of the week) as clock data.
7AH
Address error
The start address of the read/write device is out of
range.
• Review the contents of the message to transmit.
• Check the devices and the device range that can be used.
( Section 19.4 Device Data Area)
7B
H
Exceeded number of points error
The read/write range exceeded the device range.
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