Omron NX-EC0112, Руководство пользователя

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5 I/O Refreshing Methods
5 - 6 NX-series Position Interface Units User’s Manual (W524)
• The ON/OFF response time is required from when outputs are updated until the output status is set
on the external terminals of the NX Units.
 Input Units
 Output Units
(c) The inputs are not read at the same time for all of the Units.
ON/OFF response time
Input filter time
ON/OFF response time
Input filter time
(b) Input read timing
Input is set.
Input is read into the Unit.
(a) Inputs are refreshed in order for each Unit.
(d) The interval for reading inputs is not constant.
I/O refreshing
on NX bus
Unit A
Unit B
Input refreshing Output refreshing
Unit A
Unit B
(d) The interval for updating outputs is not constant.
(c) The outputs are not updated at the same time for all of the Units.
ON/OFF response time
ON/OFF response time
(b) Output refresh timing
(a) Outputs are refreshed in order for each Unit.
Output is updated.
Terminal status is set.
I/O refreshing
on NX bus
Input refreshing Output refreshing