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EN-EIC-325
Four Axis Encoder Interface Card For The ISA Bus
D1-1
⻬ Four 24-Bit Up/Down
Latch Counters
⻬ Each Counter has
a Programmable
Setpoint Value
⻬ Provides the Excitation
to the Encoders
The Model EN-EIC-325 Four Axis
Encoder Interface Card for the ISA
BUS accommodates most of the
popular optical encoders available.
The board supports either squarewave or sinusoidal output encoders,
both linear and rotary types. It can
be directly connected to up to four
encoders and will also provide
necessary excitation to the
encoders.
The card is equipped with four
differential inputs for limit or home
switches/marker/encoder index
and 11 single-ended inputs for
general use. Also, there are four
opto-isolated outputs that may be
used for set-points, carry/overflow
or index/marker and three optoisolated outputs for general use.
$
575
Basic Unit
The card has four 24-bit up/down
latch counters. Each counter can
be programmed for a preset value.
There is an internal status register
for rapid storing and clearing of
signals.
Specifications
Number of Encoders:
4 per board
Multiple Encoder Pulses:
1, 2 or 4 (software selectable)
Encoder Outputs: Sinusoidal
or square-wave types
Counter Size: 24-bit up/down
with latched buffer
Method of Communication
with PC Bus: I/O port
addressing, 16 jumper
selectable address ranges
EN-EIC-325 (ISA Bus), $575, shown slightly larger than actual size
Extended Warranty
Program
SM
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D1-2
D1
ANALOG INPUT AND
MULTI-FUNCTION CARDS
Each card is supplied with one mating connector for the 44 pin encoder input port. For an
extra mating connector for the encoder input port, order part number EN-EIC-325-CONN, $7.
Each card also includes example software and source code illustrating how to communicate
with the card under DOS as well as Windows drivers (EN-EIC-325 supports Windows 98)
with complete Visual Basic examples.
Ordering Example: EN-EIC-325 four axis encoder interface card for the ISA bus and
OMEGACARESM1-year extended warranty for EN-EIC-325 (adds 1 year to standard
1-year warranty), $575 + 57 = $632.
To Order
(Specify Model Number)
Model No. Price Description
EN-EIC-325 $575 Four axis encoder interface card for the ISA bus
EN-EIC-325-CONN 7 Extra mating connector for encoder input port
ALL MODELS AVAILABLE FOR FAST DELIVERY!
Encoder Inputs:
4 Wave Signal Inputs
(one per channel)
• single ended or differential
for square wave
• differential for sinusoidal wave
4 Wave Index (Marker) Inputs
(one per channel)
• single ended or differential
11 general purpose inputs
TTL/CMOS compatible Schmidt
trigger single-ended
Encoder Outputs:
4 event signal outputs
• can be set to respond to
following events - setpoint,
overflow and index/marker
• 1 opto-isolated output per
channel
3 general purpose opto-isolated
outputs
Power
(All supplied from ISA bus):
+5 V, 200 mA max; +12 V,
100 mA max; -12 V, 50 mA max
Encoder Connectors: Mini D-Sub
44 pin (mating connector supplied)
Output Connectors: D-Sub 9 pin
Operating Ambient: 0 to 50°C
(32 to 122°F), up to 80% RH
non-condensing
Dimensions:
153 L x 107 mm W
(6.0 x 4.2")
Weight: 150 g (5.3 oz)
ENCODER SIGNALS
SQUARE-WAVE SIGNAL
Signals: Square wave A phase
and B phase shifted by 90
°,
single-ended or differential
Compatibility:
HTL 0.5-5V or TTL compatible
Rate: 500 Kpps max
SINUSOIDAL SIGNALS
Signals: Two incremental
sinusoidal signals (phase
A and B shifted by 90
°)
differential
Signal Range (Encoder Output)
Impedance: <1 KΩ: current output
encoders, >+
100 µA; voltage
output encoders, >+ 100 mV for
phases A, B and for the reference
marker/index pulse
Encoder Excitation: 5 Vdc
Light Source Current:
900 mA total max, protected
by a polyswitch resettable fuse
Rate: 500 Kpps max
ENCODER COUNTER:
Counter: 24-bit up/down counter
+24 bit latched buffer per counter
Setpoint: Independently
programmable setpoint for each
counter
Buffers: User may freeze the
buffers without stopping the
counters from counting
Operation: Independent
operation mode for each axis
Encoder Pulses:
Single/multiple encoder pulses
(1, 2 or 4 - software selectable)
Counter Reset: Counter may be
reset when index is reached
(software selectable)
Output/Interrupt Options
for each Encoder
(Independently Selectable):
Set-point reached, counter carry
flag, index/marker
OMEGACARESMextended warranty program
is available for models shown on this page.
Ask your sales representative for full details
when placing an order. OMEGACARE
SM
covers parts, labor and equivalent loaners.
EN-EIC-325 (ISA Bus), $575, shown smaller
larger than actual size
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