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integration","\u002Fen\u002Fdevice-sdk\u002Ftroubleshooting","en\u002F10.device-sdk\u002F8.troubleshooting","Troubleshooting",{"title":284,"navTitle":15,"path":285,"stem":286,"children":287,"page":40},"Reference","\u002Fen\u002Freference","en\u002F11.reference",[288,292,296,300],{"title":289,"path":290,"stem":291,"navTitle":289},"Drivers","\u002Fen\u002Freference\u002Fdrivers","en\u002F11.reference\u002F1.drivers",{"title":293,"path":294,"stem":295,"navTitle":293},"Protocols","\u002Fen\u002Freference\u002Fprotocols","en\u002F11.reference\u002F2.protocols",{"title":297,"path":298,"stem":299,"navTitle":297},"Controls","\u002Fen\u002Freference\u002Fcontrols","en\u002F11.reference\u002F3.controls",{"title":282,"path":301,"stem":302,"navTitle":282},"\u002Fen\u002Freference\u002Ftroubleshooting","en\u002F11.reference\u002F4.troubleshooting",{"title":304,"navTitle":15,"path":305,"stem":306,"children":307,"page":40},"Examples","\u002Fen\u002Fexamples","en\u002F12.examples",[308,312,317,322,327,331,335,339,343,347,352,357,362],{"title":309,"path":310,"stem":311,"navTitle":309},"Simulation: all signals","\u002Fen\u002Fexamples\u002Fsimulation-all-signals","en\u002F12.examples\u002F01.simulation-all-signals",{"title":313,"path":314,"stem":315,"navTitle":316},"Modbus RTU master over a serial line","\u002Fen\u002Fexamples\u002Fserial-modbus-master","en\u002F12.examples\u002F02.serial-modbus-master","Modbus RTU master",{"title":318,"path":319,"stem":320,"navTitle":321},"Modbus RTU slave with simulated sensors","\u002Fen\u002Fexamples\u002Fserial-modbus-slave","en\u002F12.examples\u002F03.serial-modbus-slave","Modbus RTU slave",{"title":323,"path":324,"stem":325,"navTitle":326},"Modbus TCP master over a TCP client","\u002Fen\u002Fexamples\u002Ftcp-client-modbus-master","en\u002F12.examples\u002F04.tcp-client-modbus-master","Modbus TCP master",{"title":328,"path":329,"stem":330,"navTitle":328},"Modbus TCP slave on the TCP Server","\u002Fen\u002Fexamples\u002Ftcp-server-modbus-slave","en\u002F12.examples\u002F05.tcp-server-modbus-slave",{"title":332,"path":333,"stem":334,"navTitle":332},"Bit field and a script","\u002Fen\u002Fexamples\u002Fbit-field-script","en\u002F12.examples\u002F08.bit-field-script",{"title":336,"path":337,"stem":338,"navTitle":336},"Two ECUs at once","\u002Fen\u002Fexamples\u002Ftwo-ecus","en\u002F12.examples\u002F09.two-ecus",{"title":340,"path":341,"stem":342,"navTitle":340},"ISS position live","\u002Fen\u002Fexamples\u002Fiss-live-tracking","en\u002F12.examples\u002F10.iss-live-tracking",{"title":344,"path":345,"stem":346,"navTitle":344},"Simulated thermometer","\u002Fen\u002Fexamples\u002Fsimul-temp-measure","en\u002F12.examples\u002F11.simul-temp-measure",{"title":348,"path":349,"stem":350,"navTitle":351},"JSON signals from a Python generator","\u002Fen\u002Fexamples\u002Fjson-signal-python","en\u002F12.examples\u002F12.json-signal-python","JSON signals from Python",{"title":353,"path":354,"stem":355,"navTitle":356},"Raw CAN frames from a Raspberry Pi","\u002Fen\u002Fexamples\u002Fraw-can-python","en\u002F12.examples\u002F13.raw-can-python","Raw CAN from a Raspberry Pi",{"title":358,"path":359,"stem":360,"navTitle":361},"XCP on TCP on a NUCLEO-H723ZG: measurement, stimulation and calibration maps","\u002Fen\u002Fexamples\u002Ftcp-client-xcp-nucleo-maps","en\u002F12.examples\u002F14.tcp-client-xcp-nucleo-maps","XCP on TCP on NUCLEO-H723ZG",{"title":363,"path":364,"stem":365,"navTitle":366},"XCP on CAN on a NUCLEO-H723ZG: measurement, stimulation and calibration maps","\u002Fen\u002Fexamples\u002Fcan-xcp-nucleo-maps","en\u002F12.examples\u002F15.can-xcp-nucleo-maps","XCP on CAN on NUCLEO-H723ZG",{"id":368,"title":100,"body":369,"description":731,"extension":732,"meta":733,"navTitle":100,"navigation":734,"path":101,"seo":735,"stem":102,"__hash__":736},"docs_en\u002Fen\u002F04.variables\u002F5.events.md",{"type":370,"value":371,"toc":722},"minimark",[372,376,394,416,421,474,495,509,520,529,533,546,571,593,596,606,610,616,649,652,663,669,679,686,701,705,711],[373,374,100],"h1",{"id":375},"events",[377,378,379,380,384,385,389,390,393],"p",{},"An ",[381,382,383],"strong",{},"event"," tells the protocol ",[386,387,388],"em",{},"when"," a variable's value is\ncommunicated — typically \"read this every 100 ms\". Events are defined\nonce, in ",[381,391,392],{},"Home → Project Configuration → Events",", and are shared by\nthe whole project: any number of variables can be bound to the same\nevent, so one place controls the rate of a whole group.",[377,395,396,397,402,403,406,407,411,412,415],{},"A variable is bound to an event when it is\n",[398,399,401],"a",{"href":400},"\u002Fvariables\u002Fadd-a-variable","assigned to a protocol"," — by the ",[381,404,405],{},"Event","\nselection in the communication detail, which ends up as\n",[408,409,410],"code",{},"eventRef=\"\u003Cevent name>\""," in the variable's ",[381,413,414],{},"Comm params",". The\nreference is by event name.",[417,418,420],"h2",{"id":419},"event-types","Event types",[422,423,424,440],"table",{},[425,426,427],"thead",{},[428,429,430,434,437],"tr",{},[431,432,433],"th",{},"Type",[431,435,436],{},"Parameters",[431,438,439],{},"Meaning",[441,442,443,457],"tbody",{},[428,444,445,451,454],{},[446,447,448],"td",{},[381,449,450],{},"Periodic",[446,452,453],{},"Period, Unit",[446,455,456],{},"regularly, every Period × Unit",[428,458,459,464,467],{},[446,460,461],{},[381,462,463],{},"OnRequest",[446,465,466],{},"—",[446,468,469,470,473],{},"on demand — a one-shot read by the ",[381,471,472],{},"Read"," button",[377,475,476,477,480,481,480,484,480,487,490,491,494],{},"Period units are ",[408,478,479],{},"Milisec",", ",[408,482,483],{},"Sec",[408,485,486],{},"Min",[408,488,489],{},"Hour",", and ",[408,492,493],{},"Day",".",[377,496,497,504],{},[498,499],"img",{"alt":500,"className":501,"src":503},"Project events — the OnRequest event selected",[502],"img-light","\u002Fimg\u002FQInsight_tut_4_5_events_onrequest_light.png",[498,505],{"alt":500,"className":506,"src":508},[507],"img-dark","\u002Fimg\u002FQInsight_tut_4_5_events_onrequest_dark.png",[377,510,511,512,515,516,519],{},"The shipped reading protocols (Modbus Master, XCP on CAN, XCP on TCP,\nSimulation Signals) read a variable either ",[381,513,514],{},"periodically"," (or via DAQ\nfor XCP) or ",[381,517,518],{},"on request",". A read variable without an event is not\nread at all (a warning appears in the log).",[521,522,523],"blockquote",{},[377,524,525,528],{},[381,526,527],{},"OnValueChanged"," — older projects may contain an event of type\nOnValueChanged (with a Threshold parameter). Such an event loads and\nstays editable, but no shipped protocol handles it and a new one can\nno longer be created.",[417,530,532],{"id":531},"reading-on-request-onrequest","Reading on request (OnRequest)",[377,534,535,536,538,539,542,543,545],{},"A variable bound to an ",[381,537,463],{}," event is ",[381,540,541],{},"not polled"," nor\nstreamed via DAQ — it is read once each time the operator presses\n",[381,544,472],{},":",[547,548,549,563],"ul",{},[550,551,552,553,555,556,559,560,562],"li",{},"in ",[381,554,146],{}," and ",[381,557,558],{},"Matrix"," the ",[381,561,472],{}," button sits in the\ncontrol header next to the settings arrow,",[550,564,565,566,559,568,570],{},"in the ",[381,567,151],{},[381,569,472],{}," button is in the row's column of\nthe same name.",[377,572,573,574,480,577,580,581,584,585,588,589,592],{},"The button appears only for variables the protocol can read on\nrequest — today ",[381,575,576],{},"XCP on CAN \u002F TCP",[381,578,579],{},"Modbus Master"," and\n",[381,582,583],{},"Simulation Signals",", for variables with direction ",[408,586,587],{},"read"," or\n",[408,590,591],{},"readWrite",". Reading works only while communication runs; in edit mode\n(or when the read fails) the button turns red. Until the first press\nthe display stays empty.",[377,594,595],{},"Typical uses are calibration parameters and large maps that change\nrarely and need not be polled.",[377,597,598,599,602,603,494],{},"A custom protocol plugin can support on-request reads by implementing\nthe optional ",[408,600,601],{},"IProtocolVariableReadProtocol"," interface — see\n",[398,604,221],{"href":605},"\u002Fcustom-extensions\u002Fcustom-protocol",[417,607,609],{"id":608},"editing-events","Editing events",[377,611,612,613,615],{},"In ",[381,614,392],{}," each event has:",[547,617,618,628,633,643],{},[550,619,620,623,624,627],{},[381,621,622],{},"Name"," — the identifier variables reference (",[408,625,626],{},"eventRef","),",[550,629,630,632],{},[381,631,433],{}," — selectable only while creating the event; an existing\nevent keeps its type,",[550,634,635,636,555,639,642],{},"the type's parameters (",[381,637,638],{},"Period",[381,640,641],{},"Unit"," for Periodic; OnRequest\nhas none),",[550,644,645,648],{},[381,646,647],{},"Extra Params"," — optional protocol-specific parameters (below).",[417,650,647],{"id":651},"extra-params",[377,653,654,655,658,659,662],{},"Extra Params extend an event with parameters the event itself does not\ninterpret — they are written in the same ",[408,656,657],{},"key=\"value\";key=\"value\""," form\nas Comm params and it is the ",[381,660,661],{},"protocol"," of the bound variable that\nreads the keys it understands. The field stays empty for ordinary\nevents.",[377,664,665,666,668],{},"Today Extra Params are used by ",[381,667,252],{}," to mark an event as an ECU DAQ\nevent channel:",[670,671,677],"pre",{"className":672,"code":674,"language":675,"meta":676},[673],"language-text","direction=\"DAQ\";daqId=\"1\"\n","text","",[408,678,674],{"__ignoreMap":676},[377,680,681,682,494],{},"Variables bound to such an event are streamed by the ECU itself instead\nof being polled — the full explanation, examples and diagnostics are in\n",[398,683,685],{"href":684},"\u002Freference\u002Fprotocols#xcp-polling-daq-and-stim","XCP polling, DAQ, and STIM",[377,687,688,689,692,693,696,697,700],{},"Unlike Comm params, Extra Params are validated strictly: a malformed\nentry (a segment not in the ",[408,690,691],{},"key=\"value\""," form, or an incomplete key\ncombination — for XCP e.g. ",[408,694,695],{},"direction=\"DAQ\""," without ",[408,698,699],{},"daqId",") removes\nthe affected variables from communication at project load, with a log\nwarning describing exactly what is wrong. A key unknown to the protocol\nonly logs a warning and is ignored.",[417,702,704],{"id":703},"a-typical-event-set","A typical event set",[670,706,709],{"className":707,"code":708,"language":675,"meta":676},[673],"Poll100ms      Periodic, Period 100, Unit Milisec\n               — ordinary polling of slower values\n\nDaq_mainloop   Periodic, Period 1, Unit Milisec\n               Extra Params: direction=\"DAQ\";daqId=\"1\"\n               — fast measurements streamed by the ECU (XCP DAQ)\n",[408,710,708],{"__ignoreMap":676},[377,712,713,714,717,718,721],{},"Both events can live side by side in one project and one protocol:\nvariables on ",[408,715,716],{},"Poll100ms"," are polled, variables on ",[408,719,720],{},"Daq_mainloop"," are\nstreamed.",{"title":676,"searchDepth":723,"depth":723,"links":724},3,[725,727,728,729,730],{"id":419,"depth":726,"text":420},2,{"id":531,"depth":726,"text":532},{"id":608,"depth":726,"text":609},{"id":651,"depth":726,"text":647},{"id":703,"depth":726,"text":704},"Events decide when variables communicate — periodically or on request, the editor, Extra Params.","md",{},true,{"title":100,"description":731},"2EcXRQA5RPgsJs9ELj39HUyE0it_rCbFRXICLoZ1HlY",[738,739],{"title":95,"path":96,"stem":97,"navTitle":98,"children":-1},{"title":109,"path":110,"stem":111,"navTitle":112,"children":-1},1791554568268]