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19.5 Message Formats
19.5.6 Formats 11 to 13 (Digital Electronics Corporation's memory link method)
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 in format 11, 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 formats 12 and 13 (Digital Electronics Corporation's memory link method (extended
mode)), the details (error code) of the error 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 (R) or batch write (W) 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)
12H
Message length error
The upper limit of the data length that can be received
by the GOT has been exceeded.
• Review the contents of the message to transmit.
• Check the data length of the message. (data length of the data
section, etc.)
16H
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.
FA
H
Address error
The head address of the read/write device is out of
range.
• Review the contents of the message to transmit.
• Check the devices that can be used and device ranges.
( Section 19.4 Device Data Area)
FB
H
Exceeded number of points error
The read/write range exceeded the device range.
FCH
Message format error
The format of the received message has error.
• Check the settings of "Communication Detail Settings".
• Review the contents of the message to transmit.
FF
H
Timeout error
There is no response from the GOT, or the slave of the
specified address does not exist.
• Check the communication cable and communication module
attachment.
• Check the settings of "Communication Detail Settings".
• Review the contents of the message to transmit.
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