Key Features - Advantech PCIE-1884 User Manual

PCIE-1884 is a PCI Express card that features four 32-bit encoder counters with pro-
grammable trigger output (preloaded FIFO) for position comparisons. Ideal for motor
control and position monitoring applications, PCIE-1884 also provides general coun-
ter functions, such as frequency measurement, pulse width measurement, pulse out-
put, and PWM output. All channels are protected by 2,500 V
1.1

Key Features

 4 x 32-bit programmable encoder counters
 Quadrature (X1, X2, X4), dual pulse (CW/CCW), and signed pulse (OUT/DIR)
modes
Programmable trigger output (preloaded FIFO) for position comparisons

 Supports single-ended and differential inputs
 2,500 V
DC
Digital filter with selectable values

Onboard Programmable Encoder (or General Purpose) Counters
The PCIE-1884 card features four 32-bit encoder (or general purpose) counters that
provide encoder input, encoder-compare output, one-shot output, PWM output, peri-
odic interrupt output, and time-delay output, as well as measurements of frequency
and pulse width.
Encoder Interface
Each channel includes a decoding circuit for incremental quadrature encoding. Inputs
accept either single-ended or differential signals. Quadrature input works with or
without an index, allowing linear or rotary encoder feedback.
Counters
For the four independent 32-bit counters, the maximum quadrature input rate is 40
MHz and the maximum input rate in counter mode is 10 MHz. Each counter can be
individually configured for quadrature decoding, pulse/direction counting or up/down
counting.
Onboard FIFO for Position Comparisons
PCIE-1884 is also equipped with a 1k-byte FIFO for enabling high-speed position
comparisons and trigger pulse output.
Digital Input and Interrupts
PCIE-1884 features four digital input channels. Each channel accepts digital input as
either index input for a rotary encoder or as home sensor input for a linear encoder.
The card can initiate repeated system interrupts based on a digital input signal, coun-
ter comparison, or programmed time interval. These interrupts facilitate precise mon-
itoring of the control system speed.
PCIE-1884 User Manual
isolation protection for all channels
isolation circuits.
DC
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