Incremental Encoders - National Instruments NI-9361 Getting Started Manual

difference between the terminals is within the input low range,
the channel registers as low.
Note
manuals
levels.

Incremental Encoders

Incremental encoders typically have channel A and channel B.
By monitoring both the number of pulses and the relative phase
of channels A and B, you can track both the position and
direction of rotation. Some encoders have a third channel,
channel Z, which is also referred to as the index channel. A high
level on channel Z causes the counter to be reloaded with a
specific value in a specific phase of a cycle.
Connecting Single-Ended Incremental Encoders
You can connect single-ended incremental encoders to the
NI 9361.
Refer to the NI 9361 Datasheet on
for more information about digital logic
NI 9361 Getting Started Guide | © National Instruments | 19
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