1. Before Using the Product
CNT32-4MT(LPCI)
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1.
Before Using the Product
This chapter provides information you should know before using the product.
About the Board
This product is a PCI bus compliant interface board for counting the pulses input from the external
device.
This product supports a low-profile PCI slot and, if replaced with the supplied bracket, supports a PCI
slot, too.
The board has four channels of 32-bit up/down counters, allowing external devices such as a rotary
encoder and a linear scale to be connected. Given below are examples of using the board for “detecting a
position of the table of a machine tool” and “detecting a change in weight”.
The pulse signal inputting interface is unisolated LVTTL-level input that can input pulse signals at high
speed.
The application for this board can transfer data between the board and the PC at high speed using PCI
bus mastering.
<Example >
Linear Scale
CNT32-4MT(LPCI)
Encoder
CNT32-4MT(LPCI)
- Detecting a position of the table of a machine tool
Processing thing
Tool
Power supply
RelayBOX
- Detecting a change in weight
Power supply
Rack
Features
-
Can input two-phase and single-phase signals.
-
Can input pulse signals up to 10MHz and can resolve phase differences as short as 25nsec.
-
Can be converted to a differential input interface using the differential unit (CTP-4D) and
connection cable (CNT-68M/50M) which are sold separately.
-
One control signal input pin per channel.
-
Can count values sampling at a maximum sampling rate of 20 MHz.
-
Supporting bus mastering, enabling high-speed data transfer between the board and the PC without
intervention from the CPU.
-
Can generate an interrupt, issuing an external signal, or presetting/zero-clearing the count value
when it matches an arbitrary predefined value.
-
Support for both of low-profile and standard PCI slots (interchangeable with a bundled bracket).
