JAI GO-5100MP-PGE User Manual

JAI GO-5100MP-PGE User Manual Manual pdf 41 page image

Delayed ReadoutDelayed readout allows images captured by a [FrameStart] trigger command to be storedtemporarily inside the camera (delayed readout buffer) and read out using a[AcquisitionTransferStart] trigger after capture.This function is useful when executing triggerssimultaneously on multiple cameras.NoteThis function imposes a heavy processing load on the network bandwidth, as images frommultiple cameras are read out simultaneously. The number of frames that can be stored fordelayed readout depends on PixelFormat.For details, see “Trigger Control” .GO-5100MP-PGE— 41 —PTP (Precision Time Protocol) FunctionThe camera can work as the slave for Precision Time Protocol defined in IEEE 1588. When theIEEE 1588 master clock exists in the network where the camera is connected, this functionsynchronizes the camera to the time of the master clock.・Transport to be usedMulticast UDP datagram (224.0.1.129)(However, Delay_Resp is a unicast UDP datagram.)・Destination port number319 : Sync, Delay_Req, Pdelay_Req, Pdelay_Resp320 : Announce, Follow_Up, Delay_Resp, Pdelay_Resp, Management, Signaling・Items for synchronizationTime synchronization is performed. Frequency tuning is not performed.・PTP time data80 bit (elapsed time in 1 ns, with 00:00:00, January 1 1970 set as the origin)・Timestamp (this camera)64 bit* (PTP synchronization: LSB64bit* of PTP time data)・Supported PTP messagesAnnounce message (receive only), Sync message (receive only),Follow_Up message (receive only), Delay_Req mesasge (send only),Delay_Resp message (receive only)• The Timestamp Tick Frequency register value is fixed at 1,000,000,000 (1 GHz).• When PTP synchronization is being performed, the Timestamp Reset function is disabled.• Because GenICam treats the timestamp (64 bit) as a 64 bit signed integer, 63 bit is actuallytimestamp data without the sign bit.Cautions