Timing Chart For Output Variables Used In Communications - Omron NY532-5400 User Manual

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Timing Chart for Output Variables Used in Communications

Output Variable Operation and Timing
You can monitor the values of the output variables to determine the status throughout instruction execu-
tion. The following timing chart shows the operation of the output variables.
Execute
(1)
Busy
(Executing)
Done
Error
ErrorID
1
When Execute changes to TRUE, the instruction is executed and Busy changes to TRUE.
2
After the results of the instruction execution of the instruction are stored in the output variables,
Done changes to TRUE and Busy changes to FALSE.
3
When Execute changes to FALSE, Done returns to FALSE.
4
When Execute changes to TRUE again, Busy changes to TRUE.
5
Execute is ignored if it changes to TRUE during instruction executed (i.e., when Busy is TRUE).
6
If an error occurs, several retries are attempted internally. The error code in the ErrorID is not
updated during the retries.
7
When a communications error occurs, Error changes to TRUE and the ErrorID is stored. Also,
Busy and Done change to FALSE.
8
When Execute changes to FALSE, Error changes to FALSE.
NY-series Industrial Panel PC / Industrial Box PC Built-in EtherNet/IP Port User's Manual (W563)
(4) (5)
(3)
Changes to FALSE
because Execute
changes to FALSE.
(2)
0x0000
9 Socket Service
(8)
Changes to FALSE
because Execute
changes to FALSE.
(6)
(7)
0x1234
9
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