The EIC-325 -- a half-size PC card -- was designed to accommodate the most popular industry standard optical encoders available in the market. It supports encoders with either square-wave or sine output. As with all of our other PC add-on products, it was designed for industrial purposes and the most requested features are built on the board.
Four 24 bit up/down latch counters.
Each counter can be programmable set point value.
1 Opto-isolated output per channel + 3 general opto-isolated outputs.
1 Marker / Index /Home /Zero input per channel + 10 general inputs
Provides the excitation to the encoders.
Single ended or differential inputs, sinus or square encoder signals.
PCI bus for PC.
Driver for WIN98, WIN2000, NT, XP + examples in VB and Visual C.
User can freeze the latch counters in real time upon sending a hardware pulse or via the software
4 Axis Encoder Interface Card Model EIC-325/PCI.
The 4 Axis quadrature Encoder Interface Card was designed to accommodate most of the popular optical encoders available in the market, such as Dr. HEIDENHAIM®, RENISHAW®, HP®, and others.
The board supports either square-wave or sine output encoders, both linear and rotary types.
It can be directly connected to up to 4 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, etc., and 10 more for general use. Also there are four opto-isolated outputs that may be used for set-points, carry, marker, etc., and three outputs for general use.
Four 24 bit up/down latch counters.
Each counter can be programmable for preset value.
Four opto-isolated outputs which can be used for set-points, carry or index/marker and three outputs for general use.
Four differential inputs for connection of encoder's Index or limit switches and 11 single ended inputs for general use.
Internal status register for rapid storing and clearing signals.
Same board fits square-wave or sinus encoders.
Number of encoders: 4 per board.
Multiple encoder pulses: 1, 2 or 4 (software selectable).
Encoder type: Sinus or square wave types.
Counters size: 24 bit up/down with latched buffer.
Method of communication with PC bus: I/O ports.
Inputs / Outputs: All encoder Inputs (4xSinus, 4xCosin eand 4xIndex) are differential.
All general purpose inputs are TTL/CMOS compatible schmith trigger single ended.
All outputs are opto-isolated.
Encoder Signals Specifications
Square wave signal.
Square wave A phase and B phase shifted by 90°, single-ended or differential.
HTL 0.5-5v or TTL compatible.
500 Kpps (option for higher rate).
Sine wave signal:
Two incremental sinusoidal signals (Phase A and B Shifted by 90°).
Current output encoders: >50 mA.
Voltage output encoders: >500 mV for Phases A,B and for the reference marker/ index pulse.
Excitation to the encoders: 5Vdc.
Light source current: max. 900 mA total. Protected by a poly switch resetable fuse.
Encoder Counter Features
24 bit up/down counter + 24 bit latched buffer per counter.
Independent programmable set-point for each counter.
User may freeze the buffers without stopping the counters from counting.
Independent operation mode for each axis.
Single / multiple encoder pulses.
Reset counter when index reached / by software.
Independent selectable output options for each encoder:
Counter carry flag.
Independent selectable interrupts options for each axis:
Counters carry flag.
+5V: 200mA max.
+12V: 100mA max.
-12V: 50mA max.
All supplied from ISA/PC-104 bus.
Encoders: Mini DIP 44 pin.
Outputs: DIP 9 pin.
PCI edge connector.
Operating temperature: 0-50° C (32-122° F).
Humidity: up to 80% non-condensing.
Board dimensions - Half size PC card.
A package to utilize the PC as a 4-axis sophisticated counter.
Examples and source code on how to communicate with the board and drivers for WIN98, WIN2000, NT, XP (OCX and DLL) with full example in VB and Visual C.
The drivers are constantly updated on our web site.