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Functions of General-purpose Slaves and Environment-resistive Slaves Section 4-3
Note The value for detecting a low voltage for the I/O power cannot be set.
Checking Using the
DeviceNet
Configurator
The method used to check information from the DeviceNet Configurator (Ver.
2.20 or later) is described here.
1,2,3... 1. Turn ON the power to the DRT2-series Smart Slave.
2. From the Maintenance Mode Window, double-click the icon of the applica-
ble DRT2-series Smart Slave in the Network Configuration Window to dis-
play the Maintenance Information Window. The I/O power is not being
supplied if the Input Power Supply Error or Output Power Supply Error
items are selected.
4-3-2 Input Filter
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
(Variable from 0 to 100 ms)
When input data changes to ON, the input data is read four times for the
period of the set interval (1/4 of 0 to 100 ms). If all values are ON, the input is
turned ON. The ON timing is delayed according to the length of the ON
response time.
The input filter can also be used to perform an ON delay operation (a delay for
the ON response time is created when the input filter is enabled).
OFF
ON
ON
OFF
ON ON
OFF
OFF
4 3 2 1
ON
ON
ON
ON
4 3
2
1
OFF
ON
ON
OFF
Not all values are
ON during the four
samples, so the
input is regarded as
being OFF.
Input data Input data
All values are ON
during the four
samples, so the input is
regarded as being ON.
ON delay time
(= input filter time)
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