11.3 MECHATROLINK-III I/O Module Settings
11.3.4 I/O Command Details
11-25
Execution and Operating Procedure
1.
Make sure that the following condition is met.
2.
Set the following parameters.
• NO (Parameter Number)
• SIZE (Parameter Size)
• PARAMETER (Parameter Data)
Setting Precautions
Make any necessary changes to NO (Parameter Number), SIZE (Parameter Size), or PARAMETER
(Parameter Data) before executing the Write Non-volatile Parameter command or during the same
scan that the I/O Command register is set to 6. Do not change these settings during execution of the
Write Non-volatile Parameter command.
3.
Set the I/O Command register to 6 to execute the Write Non-volatile Parameter com-
mand.
Confirming Completion of the Command
Use the following information to confirm that the command has been completed.
No. Execution Condition Confirmation Method
1
I/O command execution must be com-
pleted.
Command Status bit 2 (CMDRDY) = 1
No. Confirmation Method
1 I/O Command Response register = 6 (Write Non-volatile Parameter)
2 Command Status bit 2 (CMDRDY) = 1
3 NO must be the same in the command and response.
4 SIZE must be the same in the command and response.
5 PARAMETER must be the same in the command and response.
• If the command is not completed within 5 seconds after it is executed, bit 0 in the Master
Status register changes to 1 (TIMEOUT).
• When bit 0 (D_ALM) or bit 1 (D_WAR) in the Command Status register is 1, check the error
details with the application and perform the stop processing. The system will not perform
stop processing.
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