1-1
Features
The High-speed Analog Input Units are used to process analog input signals and trigger input signals.
The NX-series High-speed Analog Input Units have the following features.
Refer to
on page 1 - 9 for details on High-speed Analog Input Unit models and
on page 1 - 11 for details on their functions.
Sampling Period of 5 μs at the Shortest
The High-speed Analog Input Units can perform sampling in a sampling period of 5 µs at the shortest,
independent of the Controller’s task period.
You can change the sampling period by setting the number of samplings.
2
N
1
2
N
1
1
Sampling period
N: Number of samplings [times]
Task period of assigned periodic task
*1
Task period of assigned periodic task
*1
Sampling period
*1. The primary periodic task or the priority-5 periodic task should be assigned. If any other periodic task is as-
signed, the Unit does not perform sampling correctly.
Sampling Independent of the Number of Channels in Use
The High-speed Analog Input Units perform AD conversion in parallel for each channel that is in use.
This enables a sampling period of 5 µs at the shortest for each channel, independent of the number of
channels.
Easy Comparison of Analog Input Data between Channels
For channels that use the same number of samplings, the High-speed Analog Input Units can obtain
analog input values of each channel at the same timing. This enables easy comparison of analog input
data between the channels.
Improved Environmental Resistance by Individually Isolated Chan-
nels
The analog input channels of the High-speed Analog Input Units are individually isolated. This sup-
presses the fluctuations of analog input values due to interference between channels.
1 Features and System Configuration
1 - 2
NX-series Analog I/O Units User’s Manual for High-speed Analog Input Units (W592)
