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Functions of Digital I/O Units Section 4-4
The Programming Device can be used to read the flag status.
Note The value for detecting a low voltage for the I/O power cannot be set.
Checking with a
Programming Device
This example shows how to use the DeviceNet Configurator (version 2.43 or
higher) to check the I/O power status monitor information.
1,2,3... 1. Open the Network Configuration Window, right-click the Slice I/O Termi-
nal’s icon and display the Maintenance Information Window.
2. Select the desired Slice I/O Unit and click the View Button. The Unit’s
Maintenance Information Window will be displayed. If the Power Supply
Error Option is selected, it indicates that I/O power is not being supplied.
4-4-2 Input Filter (Input Units Only)
Function Overview Input values can be read several times during a set interval so that the input
value is enabled only when the value of all samples are the same. The input
filter is applied to all of the inputs of the Unit.
ON Response Time When input data changes to ON, the input data is read four times for the
period of the set interval (1/4 of the ON response time). If all values are ON,
the input is turned ON. The ON timing is delayed according to the length of
the ON response time.
Connected device
Is the I/O power
being supplied?
I/O power is supplied to all
of the block's Units from the
Communications Unit.
Slice I/O Unit
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