![]() The generation will determine how fast each lane operates. The number of lanes may also dictate the size of the board. An eight lane board might not work in a four lane port. The number of lanes dictates the number of connections the PC has to the frame grabber. There are two things to pay attention to: the number of lanes, and PCIe generation. Frame grabbers are PCIe cards which send the camera information into the computer's RAM.ĭue to CoaXPress's high speed, it's important to make sure you select the right frame grabber, as the PCIe bus also has speed limitations. Because of this, CoaXPress requires a frame grabber. While CoaXPress does have an advantage in speed, it does not build off of an existing standard, like GigE Vision and USB3 Vision. Frame Grabbers A PCIe x8 Gen 2 CoaXPress frame grabber, supporting 4 CXP-6 connections You can browse our available CoaXPress cameras here. Cameras often use 4 cables at a time, offering a max speed of 25 Gbps in the first version, and 50 Gbps in the second version, truly unbeatable by any widely adopted machine vision interface. What makes CoaXPress the fastest interface is the use of multiple cables per camera. Eight years later, the second iteration of CoaXPress was released, doubling the bandwidth to 12.5 Gbps. ![]() When it was first released in late 2010, CoaXPress was capable of transmitting power ( PoCXP), triggers, and data at 6.25 Gigabits per second over a single cable. Like SDI, it uses coaxial cable to trasmit digital data at great speed over long distances. Multiplier/divider tool (MDV): to generate m events every d input events from any I/O toolbox event source.CoaXPress is the fastest widely-adopted machine vision interface.Divider tool (DIV): to generate an event every nth input events from any I/O toolbox event source.Delay tool (DEL): to delay up to 16 events from one or two I/O toolbox event sources, by a programmable time or number of motion encoder ticks (any QDC events).Possible user actions include setting low/high/toggle any bit of the User Output Register or generation of any User Events. User Actions Scheduler tool (UAS): to delegate the execution of 'User Actions' at a scheduled time or encoder position.Device Link Trigger tool (DLT): delivers an event on reception of a valid high-speed CoaXPress 2.0 connection trigger packet message from the remote device.A 32-bit up/down counter for delivering a position value.An optional backward motion compensator for clean line-scan image acquisition when the motion is unstable.A quadrature edge detector delivering events on selected transitions of selected pairs of input lines.Quadrature Decoder tool (QDC): a composite tool including:.Line Input tool (LIN): edge detector delivering events on rising or falling edges of any selected input line.The I/O Toolbox is a configurable interconnection of tools that generates events (usually triggers): It divides the frequency of the incoming encoder signal by a programmable integer. A Rate Divider allows the camera to acquire lines at a resolution lower than the resolution of the motion encoder.This gives the designer incredible freedom and flexibility during the development of the application. A Rate Converter allows the camera to acquire lines at any programmable resolution lower or higher than the resolution of the motion encoder.The line acquisition automatically resumes when the motion is again in the forward direction, at the exact place where the acquisition was interrupted. A feature called Backward Motion Cancellation stops the acquisition when a backward motion is detected.Optionally, the Coaxlink board can be instructed to acquire lines only when the object is moving forward or only when the object is moving backward.The Coaxlink boards interpret A/B signals from quadrature motion encoders to know in which direction (forward or backward) the part is moving. ![]() When the parts move slower, the acquisition line rate of the camera decreases. ![]() When the parts move faster, the acquisition line rate of the camera increases. The Coaxlink frame grabber controls the camera scanning rate based on the signals received from a motion encoder. ![]()
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