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Crakker Control System Troubleshooter Manual

1. Figure 5 9 Approximate Pod Voltage Thresholds V Thresh Switch Points The Pod input channels will NOT be damaged by setting the Vth level incorrectly for the application The 32 levels of Vth thresholds are provided within the Crakker to facilitate further control system troubleshooting analysis with the Crakker system For example droops in power supply voltages can be detected by utilizing multiple Pod channels configured with a sequence of Vth settings Record Triggers While the Crakker is running in the RECORD ENABLED mode it is constantly reading the input states via the Pods and comparing them to a Trigger word s contained in the Run Program A Trigger is a combination of Input Channel activity defined by the User to initiate an Alarm Logic Beach Incorporated www logicbeach com 5 9 5 Programming the Crakker with CCW discussed later or Record function When the condition of a Record Trigger are met a marker is put into the file and timing and signal waveform data is stored surrounding the Trigger Depending on the setting for the allocation of memory see Memory Saved Before Trigger data before and or after the trigger condition will be saved The Trigger Configuration screen Figure 5 10 allows the User to set the Trigger conditions for the initiation of Recording Record Trigger Depending on the Record Mode selected on the Recording Mode list box different quantities and types of Triggers will appear f
2. 5 1 Opening and Saving Run Program Files 5 2 Run Program Development 5 2 Program Description 5 2 Memory Saved Before Trigger 5 2 Recording Mode 5 2 Channel Setup 5 4 Analysis of Run Program Performance Captured Data Display and Output 6 1 Overview 0 a 6 1 Display View Screen 6 2 Data Display Navigation 6 3 Zoom In Zoom Out 6 4 Position Indicator 6 4 PanLeft PanRight 6 4 Data Display Timing 6 4 Display Timing Considerations 6 5 Time Resolution Loop Rate 6 5 Calibrated Uncalibrated 6 5 Viewing Associated Run Program 6 6 Printing e g on a oe eins Suku e asl os ete eS 6 6 Print Complete Data File 6 6 Print a Range ofPages 6 6 Print a Selected Page 6 6 Print a Selected Range of Data 6 7 Exporting Data to a CSV File Format 6 7 Utilizing The Crakkerr scseeeeeee 7 1 Overview 0 00002 eee 7 1 Assess The Problem 7 1 Minimize The Variables 7 1 Determine A Trigger Condition 7 1 Develop The Run Program 7 2 Uploading The Run Program 7 3 Isolation Pod Setup 7 3 Alarm Output Connection 7 4 Enable Crakker Recording 7 4 Collected Data Download 7 5 Data Display and Analys
3. for the OFF condition The delay in response will be a function of the Vth setting and the effective impedance of the node being monitored Connection methods to minimize this delay are discussed in the following section 3 4 Using the Crakker Logic Timing Analyzer a 0 0luF gt 100 KOHM RECTIFICATION cl lt SIGNAL CONDITIONING _ Sk COMPARISON era ckr 20 KOHM N GY CIRCUITRY 4 y a A A E2 TF wos x Z 0 01uF 100 KOHM 3 6 5 1 Pb oe lt a Ea Q n O O re Z O 5 N aa a gt Zo N ea Zo SOFTWARE OPTO ISOLATOR lt O Z J PROGRAMMABLH O _ TF 4 VOLTAGE THRESHOLD Vth SINGLE CHANNEL SHOWN Figure 3 3 Equivalent Isolation Pod Input Circuitry Connection Considerations Before connecting Pod leads to any signal node it is important to understand and assess any potential effects that the Pod current draw may have on the system to be monitored Due to the relatively high impedance of the Pod channels as explained above for most applications connection of the Pod will have no effect however for low level signals the potential effects should be assessed before connection of the Pod Additionally by optimally determining the connection techniques to insure that signals are driven high and low maximum speed of the Crakker System will result kkkkkkkkkkkkkkkkkk CAUTION kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkx If any question
4. Baud Rate setting 4 3 c cable 4 1 Calibrated Uncalibrated 6 5 CCW Analyze Run Program 4 6 Architecture Overview 4 2 baud rate 4 3 Crakker Programming 4 1 Data Display See Data Display Data View 4 2 Display of Recorded Data 4 1 Download Recorded Data 4 5 File Export 4 1 Help System 8 19 Installation 4 1 Launching 4 2 Options dialog Default File Paths 4 7 PC Hardware Software Requirements 4 1 Index Program View 4 2 Query Crakker Status 4 6 Serial Comm troubleshooting 4 4 Serial Communications 4 1 4 3 Serial Port Configuration 4 3 Set Crakker Clock Time 4 5 Status dialog Battery Status 4 7 Channel Configuration button 4 7 Data Status 4 7 Power Fail Status 4 6 Recording Stopped 4 7 Upload Run Program 4 6 Changing channel display order 6 2 Channel Description 2 4 Channel Descriptions 6 2 Channel Number 5 5 Channel Numbers 6 2 Channel order 6 2 Channel Setup 5 4 Channel Visibility 6 2 CK XF 2 2 Comm Error 8 2 Comm Timeout 8 2 communication error message 4 4 Copyright iii Crakker Accessories Carrying Case 8 27 Custom cables 8 27 RPS 1 Rechargeable Power Supply 8 27 Applications 1 4 first out Detection 8 29 AC inputs 8 24 Features 1 5 Memory Memory Consumption 8 23 Memory Data Storage Concept 8 23 Memory Roll over Calculations 8 23 Recording Window 8 23 Memory Utilization Loop Rate Theory 8 21 Mode and related Loop Rates 8 22 Overview of typical
5. Long Mode A Cursory Explanation In general the SHORT mode has been designed for the fastest Loop Rate with a compromise on the total elapsed time window that can be stored to memory Only one Record Trigger is allowed for the SHORT mode LONG mode runs at a slower Loop Rate but allows for a considerably longer total elapsed time window to be stored to memory In the LONG mode up to three Record Triggers can be set and up to two Alarm Triggers can be set The total quantity of Triggers used affects the resultant Loop Rate The final Loop Rate can be checked using the Analyze Run Program command Analysis of Run Program Performance on page 5 16 Note For simplicity in setup Users may opt to always use the LONG mode for Crakker applications where timing resolution of less than 1mS is not required Short vs Long Modes More Considerations When the Crakker is running in the RECORD ENABLED mode the Crakker stores data to memory every time the Inputs have changed relative to the last time they were scanned When this occurs the new Input Status and the elapsed time from the last change on the Inputs are stored in memory In addition to storing when the Input Status has changed the Crakker also stores data to memory even though the Inputs have not changed after a fixed period of time has elapsed This is required to prevent the elapsed time clock in software from overflowing and the resultant loss of the time
6. SELF TEST SWITCH BACK SIDE CIRCUIT BOARD ALL SWITCHES TO BE LEFT OFF ASSEMBLY pe CONTACT FACTORY FOR DETAILS i DISPLAY FRONT PANEL REMOVAL SIDE VIEW EPROM NOTE NOTCH ORIENTATION LITHIUM CELL oO 7 O CIRCUIT BOARD ASSEMBLY FRONT PANEL REMOVED Figure 8 4 Replacing the Lithium Cell in the Crakker System Base Download any valuable data currently stored in Crakker memory before starting this procedure When the Crakker circuitry is exposed it is susceptible to damage from static electricity discharges Ideally work on a grounded surface and discharge any residual charge on your body by touching an earth grounded surface water pipe grounded appliance etc prior to working on the Crakker If you e and return to finish the job insure that you discharge your body charge prior to touching the Crakker Turn the Crakker Main Power switch OFF remove the three Phillips head screws identified with blue rings and tilt the top of the front panel and circuit board assembly partially out of the box Put a pencil or some other spacer between the top of the box the end toward the display and the top of the circuit board front panel assembly Remove the 7 remaining black screws from the front cover and the black front panel will separate from the two circuit board assembly below Set the front panel aside and locate the lithium cell per the following diagram Gently pry the cell to be replaced out of its ho
7. and the Run Program a Real Time Clock interface circuitry to the Isolation Pod s and other supporting circuitry This Chapter details the User interface Liquid Crystal Display front panel switches and buttons connection to the Isolation Pods and alarms and deployment of the unit Mounting and Handling The Crakker is housed in a general application plastic case that can be deployed in fairly dusty areas protected from direct water spray Care should be taken to prevent heavy contamination of the connectors for the Pods and Alarms The Crakker can be semi permanently mounted using the provided aluminum hanger see Components in Chapter 1 The two provided screws are used to fasten the hanger to the back of the Crakker case two blind holes near the top The Crakker hanger assembly can then be fastened to any other surface using the holes in the hanger kkkkkkkkkkkkkkkkkkkkkkkk B kkkkkkkkkkkkkkkkkkkkkkkk Caution The Crakker is not designed for direct immersion Mount upright for best protection kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk Crakker System Power Main Power The Crakker can be powered from any number of low voltage 8 16VDC 10 16VAC sources through the External Power Jack Figure 2 1 Logic Beach Incorporated www logicbeach com 2 1 2 Crakker System Base CK XF The CK XF see Components in Chapter 1 plug in power pack provided with the Crakker has been designed for u
8. 0 1 mA 24VDC 220 000 ohms 0 1mA which in most cases is insufficient to switch an Input to a HIGH state however reference should be made to the Specification Operating manual for the Control under test before utilizing this connection method Logic Beach Incorporated www logicbeach com 3 7 3 ISOLATION PODS Note that the current that flows is in direct proportion to the supply voltage for example with a 5VDC supply less than 23uA of current will flow 6VDC 220 000 ohms 22 7uA Extremely High Voltage Signals In applications utilizing voltage levels beyond the range of the Pod it may be necessary to connect the Pod leads across the load contactor actuation coil that is driven by the PLC Figure 3 7 In this case the voltage is within the Input Range of the Pod The disadvantage of this technique is that the actual load side of the circuit is not being sensed in turn on time critical applications i e the actual risa aa actuation delay of the high voltage load control contactor is not being measured by the Crakker HI VOLTAGE SOURCE HOT 120VAC i HI VOLTAGE S MOTOR STARTER OR CONTACTOR 120VAC COIL NEUTRAL le 3y LOAD Nee uA ISOLATION POD IP 2 ISOLATION POD Figure 3 7 Hi Voltage Node Connection Scheme Contactor Actuation Time The Crakker employed in a circuit as shown in Figure 3 8 can be used to measure the actuation delay across a contactor Here two channels are used to
9. 4 2 Data and Program View Selection Buttons Serial Communications with the Crakker Programming of the Crakker and collected data downloads from the Crakker are performed via an RS 232 serial connection linking the Crakker System Base and the PC Communication Overview The Crakker communicates with the PC via an RS 232 serial communication link Before communication can commence the supplied RS 232 serial cable must be connected between the Crakker front panel Serial Port and one of the Personal Computer serial ports The supplied telephone style RS 232 cable and plug RJ 12 mates directly with the Crakker front panel Serial Port The other end of the cable should be plugged into the supplied adapter which converts the telephone style plug to the industry standard 25 pin DB 25 or optionally 9 pin DB 9 male serial data connector supplied on IBM compatible PCs Kk kk k k k k k k k k k k k kk kkk kkk kkk NOTE kkkkkkkkkkkkkkkkkkkkkkkkkkk Utilize only Logic Beach adapters that directly connect into the serial port on your PC Although a multitude of gender and DB style adapters are manufactured by other companies many are incompatible and will prevent successful communication or could cause damage between the Crakker and the PC Please contact Logic Beach Technical Support for alternate cable adapter assistance kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk Before communication the Crakker must have power sup
10. 60 Hz120 Kohms 100 Hz93 Kohms 1000 Hz16 5 Kohms 4000 Hz5 8 Kohms Dimensions 9 5 H x 6 5 W x 4 5 D Weight 4 5 LBS including 8 pair of test leads Crakker Logic Timing Analyzer Appendix C lsolation Pod Circuit Design The Isolation Pod provides high voltage isolation between control system nodes and the Crakker System Base Additionally it provides signal rectification filtering and signal level threshold comparison to the User programmed Vth levels The detection circuitry has a DC input impedance of 220 Kohms AC input impedance varies as a function of frequency due to the capacitive filter elements shown This input impedance loads i e draws current from the node being monitored Ramifications of this current draw should be considered prior to making any connections to the control system under test Refer to Chapter 3 for additional information about using the Isolation Pods 1 KOHM HE c gt Va al ee O 0luF Js 100 KOHM RECTIFICATION Y e lt SIGNAL CONDITIONING _ SS gt COMPARISON K Gar 20 KOHM N cer CIRCUITRY 4 5 rl g Pia X A c2 z TF bos Z 0 01uF 100 KOHM t ae A EN i 9 n B nr Sees NW T al ie 1 KOHM mG Z 4 S4 Q Sg n we AS Be gt Z A J a ZA SOFTWARE OPTO ISOLATOR oF J PROGRAMMABLH io mig VOLTAGE THRESHOLD Vth SINGLE CHANNEL SHOWN Figure 8 1 Equivalent Circuit for Pod Input Channel Logic
11. A1 OFF TRIGGER if T gt Timed Trigger Value 4 A2 OFF too LATE after A1 ON TRIGGER if T gt Timed Trigger Value 5 A2 ON too EARLY after A1 ON TRIGGER if T lt Timed Trigger Value 6 A2 OFF too EARLY after A1 OFF TRIGGER if T lt Timed Trigger Value 7 A2 ON too EARLY after A1 OFF TRIGGER if T lt Timed Trigger Value 8 A2 OFF too EARLY after A1 ON TRIGGER if T lt Timed Trigger Value Al A2 T Al A2 T Al A2 T Al A2 T Al A2 T Al A2 T Al A2 T Al A2 T Figure 5 16 Timed Trigger Types Logic Beach Incorporated www logicbeach com 5 15 5 Programming the Crakker with CCW Note Alarm Output Operation Two User programmable output functions are available for the logic associated with the actual Alarm output signal which controls the output relays within the Crakker Latched and Momentary Alarm Output 1 Function QO Latched Momentary Figure 5 17 Alarm Output Operation LATCHED When Alarm Trigger conditions are met the associated Alarm will turn ON If the Alarm is configured in the LATCHED mode the Alarm will stay ON indefinitely once it has been Triggered regardless of continued activity on the Channel Inputs The Alarm can be disabled by implementing a Reset of the Crakker or by switching it OFF via the Crakker System Base front panel manual Alarm Contro
12. AC input that requires a Debounce setting See Debounce setting in Chapter 5 The Monitor feature can be used during the connection of the Crakker and Pods to a system to insure that good electrical contact is made and that a channel is functioning as anticipated Press the Stop Recording button to exit from the Monitor display Enable Recording 7 Pressing the Enable button initiates the continuous monitoring of the Input signals from the Pods and comparison to the Record and Alarm Triggers defined in the currently loaded Run Program After pressing the Enable button the name of the currently loaded Run Program and its three line description are displayed The LCD then changes to RECORD ENABLED lt WAITING gt while it continually loops testing for a Trigger condition match If data is still in memory from a prior RECORDING session RECORDING will not start The following sequence will be displayed on the LCD DATA IN MEMORY TRANSFER AND CLEAR MEMORY RECORDING NOT ENABLED In order to Enable a Recording session it is necessary to transfer the data in memory to the PC if the data is to be saved clear memory see following for Clear Memory sequence and then press the Enable Recording button Stop Recording 8 If the Crakker is in the Monitor mode the Stop button exits that mode and returns the Crakker to IDLE mode and the display to READY If the Crakker is in the RECORD ENABLED mode pressing the Stop button immedi
13. Beach Incorporated www logicbeach com 8 5 8 Appendices 8 6 Using the Crakker Logic Timing Analyzer Appendix D Alarm Output Detail The left DB 9M connector on the bottom end of the Crakker System Base provides connection to the two internal Alarm relays as well as three other TTL 0 5VDC signal outputs A mating plug DB 9F with a short cable is provided with the Crakker for use in connecting external devices to these various outputs Due to variations in cable manufacturing standards the correlation between connector pins and wire color is not standardized If this cable is to be used for the interface between the external devices and the Output connector it is necessary to first match the colored leads to their associated pins The following figure identifies the numbering scheme for the connector on the Crakker and the mating connector on the provided cable A quick continuity test will help to identify the color pin number correlation The supplied Cable Pin out table below can be completed with the color for future reference OUTPUT PORT OUTPUT CABLE 5 c Ol e299 o O O Ol O Ofeocoal Q O Q O foes POD PORT A POD PORTB POWER J wv BOTTOM END OF CRAKKER SYSTEM BASE CONN WIRE PIN COLOR 1 2 3 4 5 6 7 8 9 Figure 8 2 Crakker System Base Output Port Output Port pin and function listing follows 5V from the Crakker main power bus Current limited by in
14. Data Display Navigation The Crakker system is capable of logging millions of channel transitions hence CCW is equipped with powerful data display capabilities Zoom can be used to view timing details and the Pan commands allow easy navigation throughout a large file The Position Indicator window aids in maintaining a big picture overview of the currently displayed data Following are details on the use of these data display navigation features 6 3 Using the Crakker Logic Timing Analyzer 6 Captured Data Display and Output Zoom Controls Pan Controls Pan Left i Si ol vel Trigger location Scroll Bar Accessible Complete Data File P Viewable Data Figure 6 4 Position Indicator with Zoom and Pan Control Buttons Zoom in Zoom Out Whenever the Data View is displaying valid sample data the Zoom In command can be used to show more detail within the Data Window Zooming in will result in less timing information being displayed but at a higher time detail To Zoom In or Out use the Zoom buttons magnifying glass icons on the button bar or the equivalent menu commands View Zoom In Once you have zoomed in beyond a certain point the Data Window cannot display all of the data which might be hundreds of millions of individual samples At this point only a section of all sample data will be displayed within the active Data Window as indicated in the Position Indicator bar at the top right of the screen direc
15. LONG AND SHORT AND THEIR PARTICULAR RAMIFICATIONS ON THE RECORDING WINDOW LENGTH Figure 5 3 Record Mode Selection Flowchart Channel Setup The Channel Setup region Figure 5 4 of the Program View screen is used to configure channel names individual channel filtering debounce Record Triggers Threshold Voltage Vth and Alarm Triggers that control two output relays built into the Crakker system base which are maintained in the Crakker Run Program The number of channels Record Triggers and Alarm Triggers available for configuration vary depending on the Record Mode selected 5 4 Using the Crakker Logic Timing Analyzer 5 Programming the Crakker with CCW 1m Channel Description Debounce V Thresh Record Trigger 1 At RoatationMotor fo xi 25 fHn zl A4 Punch solenoid fo HER Hih A5 Exa fp 25 Dont Care AB Exa s t 25 Dont Care x AP fea ss 25 Dont Care x AB Ema jo H25 JDon Care 7 Figure 5 4 Channel Setup Screen for 8 Short Mode Channel Number At the left edge of the Channel Setup Screen the available channels are listed Depending on the Record Mode selected 8 or 16 Channels 1 8 for the A Pod and B Pod are listed Channel Description Each Channel can be tagged with a short 16 characters maximum descriptive name In the field the User can review each of the Channel Descriptions on the Crakker display during a STATUS display sequence This can be of assistance when making the
16. Pod enclosure is physically damaged in any way or if the unit experiences high impact e g a hard drop onto a concrete floor the unit should be returned for test and inspection by qualified Logic Beach staff HANGER rel p l I SIGNAL INPUT p l l JACKS 2 CHANNEL l l l l A foe A l J l l QUICK CONNECT l IP 2 l f N A e S LEADS 2 CHANNEL ISOLATION l J POD de ISOLATION V Figure 3 1 An Isolation Pod Pod Switching Thresholds Vth Setting During a recording session the Pod is constantly comparing the input signal from a control system node to an internal voltage threshold Vth which has been set by the User in the development of the Run Program from within CCW When the monitored input signal exceeds the Vth threshold the Pod communicates a HIGH state to the Crakker System Base and when the input signal is lower a LOW state is communicated Each Pod channel can be configured for a unique Vth voltage threshold one of 32 levels by the User from within the CCW program Refer to Figure 3 2 for approximate switching points in volts for each of the programmable Vth levels Both OFF to ON and ON to OFF switching voltages are specified indicating the approximate switching hysteresis of the Pod For example with a Vth setting of 90 the Crakker will detect an ON state with increasing voltage when the signal rises to 90 Volts the Crakker will then detect an OFF state when the
17. Power 2 2 Mounting and Handling 2 1 Overview 1 3 2 1 Power Connection Details 8 9 Power Jack 2 1 Power Switch 2 3 Power supply voltage 2 1 Reset Clear Memory 2 5 Stop Recording button 2 5 Triggered Recording Light 2 7 SYSTEM IDLE 2 4 T Test Mode 8 2 Timed Trigger 5 10 5 12 Configuring 5 13 Time Selection 5 14 Type Selection 5 14 Timing Display 6 1 Timing Timed Trigger 5 13 Triac control circuit settings 3 4 Triac setting Vth levels for use with 3 1 Trigger 5 1 5 9 Determining A Trigger Condition 7 1 Multiple trigger interaction 5 10 Trigger display in timing sequence 6 3 Trigger On Any Change 5 12 Trigger Overview 1 1 Trigger alarm 5 10 Triggered Recording Light 2 7 Type Timed Trigger 5 13 U Unable to Send Run Program to Crakker 8 2 Uploading Run Program 4 6 V Voltage Threshold 3 2 Vth Setting 3 2 W Warranty iv X Xmit Error 8 2 Z Zoom function 6 4 Index 4
18. RUN in the left position the Alarm Relay is under the control of the Crakker microprocessor The relays will be switched ON and OFF per the logic contained in the Run Program Wiring details for the ALARM outputs are contained in Appendix D Alarm Output Detail on page 8 7 Note When the Crakker main power is switched ON and the ALARM switches are in the RUN position the output relays may cycle ON for a few hundred milliseconds For this reason when cycling the power it is recommended that the Alarm switches be left in the OFF position 2 6 Using the Crakker Logic Timing Analyzer Note Triggered Recording Light 11 When the Crakker is in the RECORD ENABLED mode and a Record Trigger condition is met the Crakker turns on this light and continues recording data to fill its memory When memory is filled the light turns OFF and the LCD displays DATA RECORDED lt FINISHEDs gt indicating that a successful Recording session has been implemented If the TRIGGERED RECORDING light is ON and the LCD displays RECORD ENABLED lt WAITING gt the Crakker is continuing to write Post Trigger data to memory If this Post Trigger data is not needed the front panel Stop button may be pressed and the session will be ended Data can then be transferred to the PC for display Alarm Status Lights 12 When the Alarm Output Relays are ON contacts closed the corresponding Alarm Status Lights will be lit Isolation Pod Connections 13 and
19. Run Program how the available data memory is utilized e g 25 before Trigger 75 after The collected data is then downloaded from Crakker memory to the PC via a serial link using the Crakker Communications software Crakker Communications for Windows Software The Crakker Communications for Windows CCW program runs on a standard Personal Computer running Windows 98 2000 or XP and allows the User to communicate with the Crakker via a serial link RS 232 develop and upload Run Programs to the Crakker and download and graphically analyze data trapped by the Crakker CCW is a very powerful yet friendly software package with easy to follow organizational flow and menus and understandable HELP screens with the press of a key Additional Components In addition to the major components listed above a Serial Cable an RJ 12 to DB 25 9 adapter a 120 240 to 12VDC power supply and an Alarm Output Pigtail are included with the system Logic Beach Incorporated www logicbeach com 1 3 1 Introduction Sequence of Steps to Utilize the Crakker A typical data collection session utilizing the Crakker consists of the following sequence of steps This sequence of steps should be referred to during the reading of the manual to assist in clarifying the use of the Crakker Using the CCW program develop the Run Program for the Crakker including Trigger conditions Memory allocation Alarm Triggers Pod Signal Logic Thresholds etc
20. The output of this voltage divider is a scaled down voltage representative of the Input Signal Voltage This scaled down voltage is then sent to signal conditioning and threshold comparison circuitry which then sends a digital on off opto isolated signal to the Crakker System Base On the input voltage divider a capacitive filter resides for spike protection Due to this capacitance the effective input impedance of a channel is a function of the frequency of the input signal In Appendix B effective input impedance is listed as a function of the monitored signal frequency The input impedance of the Pod is effectively a measure of the loading that the Pod circuitry will add to the circuit under test To operate the Pod draws a minimal current from the control circuitry under test due to this input impedance The higher the impedance the better for most applications as high impedances draw less current As can be seen in Appendix B for DC signals the input impedance is over 220K ohms and for 60 Hz AC the effective impedance is over 130K ohms Another effect of the capacitive filtering on the inputs is manifest when the signal voltage impressed on the inputs turns off the capacitors tend to delay turn off of the signal to the Crakker System Base To optimize the speed response of the Crakker System connections should be made in a manner that results in the Pod inputs being driven to a High or Low state as opposed to being allowed to float
21. Upload the Run Program to the Crakker via the serial link The Crakker will then adopt the operational personality contained within the Run Program Connect the Pod signal leads to the nodes to be monitored Connect the Crakker and the Pod s together and press MONITOR to observe the current input state on all active channels Connect the Alarm outputs to the Crakker optional Enable Recording within the Crakker and wait for the Trigger to occur After the TRIGGER has occurred connect the Crakker to the PC running CCW and download the trapped data from the Crakker memory to the PC Display the data on the PC screen analyze print and or output it to spreadsheet format Applications Portable enclosed low power operation allows the Crakker to trap data in areas too punishing for other forms of instrumentation such as strip chart recorders plotters storage scopes etc Additionally the Crakker can be set up connected directly to various control I O nodes and the data CF and analyzed all without interrupting the existing control process or reprogramming the PLC Just a few uses for the Crakker Trapping intermittent problems due to sticky switches loose connections over or under temperature or faulty logic Testing control loop speed for time critical applications Characterizing response of control systems utilizing mechanical components First Out analysis of control logic who dunnit Quantifying cycling
22. Use the drop down list box to select the desired switching threshold for each channel Typically the Vth setting should be set at approximately 1 2 to 3 4 of the voltage present at the control system node of interest For example on a node that swings between 0 and 5VDC a setting at 3V should provide good performance On an AC signal node that swings between 0 and 120VAC rms a setting of 80 or 90V should give good performance When monitoring AC nodes keep in mind that a Debounce setting may also be required see prior section on Debounce Additional information on the Vth setting is provided in Pod Switching Thresholds Vth Setting on page 3 2 For convenience the Vth Threshold Table Figure 5 9 is duplicated in both sections Note that the voltage specifications are approximate and will vary slightly between units 5 8 Using the Crakker Logic Timing Analyzer Note Tip Programmed Vth Level Approximate Approximate Vdc OFF to On Voltage Vdc ON to OFF Voltage Vdc 2 0 2 0 1 3 2 5 2 5 1 7 3 0 3 0 2 2 4 0 4 0 3 0 5 0 5 0 4 0 6 0 6 1 4 6 8 0 8 1 6 0 10 0 10 0 6 9 15 15 10 20 19 13 25 25 19 30 30 21 40 40 31 50 50 40 60 58 48 70 70 59 80 82 70 90 90 78 100 100 87 110 112 101 120 122 111 130 130 118 140 139 127 150 150 140 160 158 147 170 169 159 180 182 174 190 190 182 200 198 190 210 212 205
23. a Customer Purchase Order against which repair charges may be invoiced The alteration or repair of this equipment except by Logic Beach personnel or Logic Beach authorized repair facilities will void the warranty Logic Beach is not liable for incidental or consequential damage If any questions arise concerning the warranty contact Logic Beach before taking any action Call Logic Beach at 619 698 3300 when information assistance or authorization are required iv Using the Crakker Logic Timing Analyzer Receiving Inspection Reshipment Delivery Upon delivery inspect all shipping containers for signs of damage Note any shipping damage to the carrier before accepting the container We suggest retaining the original shipping container for use if it should become necessary to reship or return the product A visual inspection should be made when removing the instrument from the shipping container A claim for any concealed damage should be placed with the carrier immediately Retain all shipping materials for inspection Inspection Before applying power a thorough inspection of the unit is required Visually examine the Crakker and Isolation Pods for Cracks or abrasions Mechanical package damage Broken or damaged display buttons etc on Control Panels Damage to Pods or leads Notify Logic Beach Customer Service Department immediately if any evidence of damage is noted Do Not Apply Power To A Unit That
24. base type not headset cable can be utilized for longer RS 232 distances These cables are available from Logic Beach or at most stores that sell telephones and supplies At lower Baud Rates e g 1200 Baud in low electrical noise environments RS 232 communication in excess of 100 has been successfully achieved Push Buttons Status Time 5 Depressing this button will result in a sequence of displays on the LCD that indicate current Status of the Crakker Displays will vary depending on whether or not collected data is retained in memory The Status button will only respond when the Crakker is in the IDLE mode i e Recording is NOT Enabled The Status display sequence with data in memory is DATA RECORDED lt FINISHED gt TIME ON DATE indicating that collected data is currently retained in memory waiting for transfer to the PC or to be cleared The Time and Date indicate when the recording session ended Crakker Time And Date currently maintained within the Crakker Real Time Clock RTC If the Time and Date are incorrect they can be set through the CLOCK SET feature in the Crakker Communications program see Chapter 4 If the time and date become incorrect shortly after setting this could indicate a discharged memory RTC battery backup lithium cell see Lithium Cell Replacement on page 2 2 CURRENT Run Program LOADED the name of the Run Program currently loaded into memory and the three line Program Description
25. communication with the Crakker is required to utilize the Analysis Report function the Analysis is performed on the Run Program under development within CCW NOT on the Run Program currently loaded in the Crakker memory The following information is calculated from the current Run Program settings and displayed in the Analysis dialog Figure 5 18 5 16 Using the Crakker Logic Timing Analyzer Run Program Analysis X Analysing Run Program Turet2 run State Triggers Enabled E Trigger on First Change Disabled Timed Triggers Enabled jo Alarm Triggers Enabled fi Channels Active fe Loop Rate 403 uS Maximum Total Recording Window fi 1 682 Days Maximum Recording Time Before Trigger 8 762 Days Maximum Recording Time After Trigger 2321 Days Figure 5 18 Analyze Run Program dialog Enabled Triggers and Alarms A listing of the types and quantity of triggers utilized in the Run Program being analyzed Active Channels 8or16 Loop Rate With the current combination of Alarms Triggers Channels enabled and Record Mode selected the Active Inputs will be read once per Loop Rate Changing any of the above mentioned variables will effect the Loop Rate Refer to Appendix K Memory Utilization Loop Rate Theory on page 8 21 for a detailed explanation of the Loop Rate Maximum Recording Window The MAXIMUM window of time that could be stored in data memory In use this window of time will be
26. cycle 16 666mS the ON time was 5 6mS and the OFF time was 2 8mS This imbalance serves to effect the Debounce time skew 5 7 Using the Crakker Logic Timing Analyzer 5 Programming the Crakker with CCW Logic Beach Inc Crakker Communications AC_Input_Debounce rec File Program Crakker View Help auen OB BOs7t amp UNCALIBRATED Cursor Time Day 0 00 00 08 613 5 AC Input Example Real Time 03 24 02 12 12 09 Position Indicator with and without Dattatcursaen debounce enabled 7 936 5 Sec 8 112 8 Sec 8 289 1 Sec 8 465 3 Sec 8 641 655 Al No Debounce A2 30mS of Debounce v b For Help press F1 Figure 5 8 Measuring timing on AC signals with and without Debounce HIGH SPEED APPLICATIONS OF DEBOUNCE In very fast dynamic applications requiring ultimate speed and response to incoming signal transitions the Debounce should be set to OMS The corresponding data display will be considerably more complex and data memory will be filled at a faster rate especially in the monitoring of AC nodes as data will be written to memory at the rate of 120 Records per second for channels monitoring 60Hz AC AC signals ON states will appear as a series of regular spaced pulses OFF states will appear as steady low signals Vth Voltage Threshold The column titled V Thresh Figure 5 4 specifies the approximate voltage thresholds that the Crakker system uses to determine a logical ON or OFF level for that channel
27. desired memory split by specifying the amount of total data memory to be used for storage of Pre Trigger data Record Mode The selection of the Record Mode can be made through utilization of the Record Mode Flowchart Figure 5 3 Trigger Channel Configuration After the Record Mode has been selected and the desired mode highlighted the Timed Trigger Record Trigger s and Alarm Triggers can be configured 7 2 Using the Crakker Logic Timing Analyzer Timed Trigger In configuring the Timed Trigger the TYPE must be selected before the TIME can be set Additionally remember that the Timed Trigger function only functions on the A1 and A2 input channels To use the Timed Trigger the LONG 16 mode must be selected Debounce Enable the Debounce appropriately if AC inputs are being monitored or if mechanical switch bounce is to be rejected Remember that the Debounce filtering slows down the response time of the Crakker In trapping inputs that are extremely fast it may be desirable to disable i e set to 0 the Debounce filtering Voltage Threshold Vth Select the Vth setting for each of the connected channels For most applications a Vth setting of approximately 1 2 to 3 4 of the ON voltage will suffice Channel Descriptions The Channel Descriptions can be displayed on the Crakker LCD during field installation Choosing logical descriptive names for each channel can greatly simplify the field installation process Re
28. during recording of the currently displayed data file is displayed in a pane on the Status Bar in the lower right corner of the screen Figure 6 1 The Loop Rate is further described and discussed in the Program View section of this manual Refer to Appendix K Memory Utilization Loop Rate Theory on page 8 21 for a detailed discussion of the Loop Rate During operation of the Crakker all of the active inputs to the Crakker are latched and read each period of time specified by the Loop Rate Therefore in the display of collected timing data the smallest time resolution that can be meaningfully displayed is this Loop Rate value Calibrated Uncalibrated In the upper left corner of the Data View Window Figure 6 1 is the Calibration Indicator When making critical time measurements on displayed timing data using the Cursor or Delta Time functions it is imperative that the data display be expanded to the Calibrated level for maximum timing measurement resolution and accuracy This bar displays one of two states Calibrated indicates that the currently displayed time base equals or exceeds the Loop Rate used during Recording of the data Uncalibrated indicates the currently displayed time base is longer than the Loop Rate 6 5 Using the Crakker Logic Timing Analyzer 6 Captured Data Display and Output When making critical time measurements the screen can be Zoomed In to the Calibrated level marked then Zoomed Out to facilit
29. exists about the effect of connecting the pod leads to a critical control system it is imperative that these questions be resolved before proceeding If this cautionary procedure is not followed possible damage to equipment or life may result Study each situation carefully before proceeding and feel free to contact Logic Beach Technical Support for assistance if desired kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk Some examples of typical connection techniques are discussed in the following sections Logic Beach Incorporated www logicbeach com 3 5 3 ISOLATION PODS Triac or Relay PLC Output Figure 3 4 The Pod leads are connected in parallel with the load When the PLC output is energized an additional 1 mA apx at 120VAC output of current flows through the Pod detection circuitry In the case of Triac outputs the small load presented by the Pod will actually help pull the output voltage closer to OV when the output is off see discussion on Triac leakage currents in Special Considerations Triacs on page 3 4 When the PLC output cycles OFF the Pod inputs are effectively shorted through the low impedance of the load insuring maintenance of the speed of the Pod input circuitry see A Bit Of Theory on page 3 4 TRIAC HOT OR RELAY 120VAC OUTPUT PLC NEUTRAL jl ISOLATION POD 1 2 3 4 IP 2 ISOLATION POD Figure 3 4 Pod Connection to Triac R
30. measure the actuation signal and the load voltage Trapping Relay Logic first Out Conditions Many industrial control systems utilize master shutdown circuits configured with a series string of relay contacts In the event that any of the relays open a master control relay opens shutting down the process system under control Pod connections to determine which of the series relays opens first First Out detection are shown in Figure 9a Additional technical information on First Out applications is contained in Appendix M Relay Logic first out Detection With The Crakker on page 8 29 3 8 Using the Crakker Logic Timing Analyzer TRIAC OR RELAY OUTPUT PLC Kl 220 VAC SOURCE 120VAC MOTOR STARTER OR CONTACTOR 120VAC COIL NEUTRAL ISOLATION POD 1 5 2 6 3 7 4 8 IP 2 ISOLATION POD Figure 3 8 Testing Contactor Actuation Time K1 K5 HAVE NORMALLY OPEN CONTACTS K2 K3 K4 K5 120VAC 120VAC land NEUTRAL ARI CET Ie Ql Te Gs NORMALLY CLOSED K6 contacts 4 IP 2 ISOLATION POD e er ISOLATION POD Figure 3 9 Relay Logic First Out Detection Logic Beach Incorporated www logicbeach com 3 9 3 ISOLATION PODS The concepts presented in the above examples can be extrapolated to many other logic and timing analysis applications Feel free to contact our technical staff for assistance in a
31. not change the Crakker compares the Elapsed Time Counter value to a COUNTER OVERFLOW value In the SHORT RECORDing mode the value is 255 one byte in the LONG mode the value is 65 535 two bytes If the current Counter value equals the OVERFLOW value the Input Status and Elapsed Time is stored to memory as a Record even though no changes on the inputs may have occurred Next the Input Status is compared to the Alarm Trigger s if enabled If the Input Status matches the Alarm Output is cycled accordingly Then the Input Status is compared to the Record Triggers looking for a match If a match is found the Recording LED is cycled accordingly and the Crakker starts recording Post Trigger data to memory The Crakker then performs a considerable amount of other miscellaneous housekeeping tasks which are not germane to this explanation then restarts the loop The time required to execute one of these loops in the longest possible route for the configuration determines the Loop Rate time The following table Figure 8 10 illustrates the various resultant Loop Rates possible and their associated speeds and memory capacity iy Z n n faa Q m ma a z a a F z4 90 29 BO ZO RECORD F 33 43 Z9 22 LOOP MAXIMUM FORCED TOTAL Q g Ia fe dE MODE 20 TE BE RATE WINDOW WRITES RECORDS SHORT 8 o o 0 0 166uS 405MINS 425mS 57340 SHORT 8 1 0 0 0 166uS 405MINS 42 5 mS 57340 LONG s
32. specified during the development of the Run Program is displayed If no Run Program is in memory NO Run Program LOADED is displayed Press Status To Display Ch Names this message is displayed for approximately three seconds While the message is displayed if the Status button is depressed again the Crakker proceeds to display the first Channel Description entered by the User during the development of the Run Program Pressing the Status button repetitively steps the display through each of the Channel Descriptions Step through all of the channels and the Crakker returns to the READY display mode This Channel Description feature can be extremely handy in the field when hooking up the Isolation Pod leads serving as a sequential list of connections to be made If no data is in memory the Status display also indicates that the Crakker is currently in the SYSTEM IDLE mode before it sequences to the current Crakker Time and Date and continues into the above sequence Monitor 6 Pressing the Monitor button while the Crakker is IDLE i e Recording is not Enabled results in a continuously updating display of the input channels states A 0 or a 1 will be displayed for all 16 channels even if only one Pod is connected A 1 indicates a voltage presence on that input in excess of the turn on threshold i e the input is ON 2 4 Using the Crakker Logic Timing Analyzer Note A rapidly fluttering 0 1 display may indicate an
33. the Current Run Program open in CCW i e not the Run Program in the Crakker memory Details on the Analysis are covered in Analysis of Run Program Performance on page 5 16 s Query Crakker Status Selecting Crakker Query Crakker Status from the menu results in two sequential dialogs that provide status information about the Crakker System Base and the Run Program currently loaded into the Crakker s memory Pressing the Crakker front panel Status button will result in a local display of much of this same information Crakker Status 2 x Filename Turet2 run gt Timed Trigger Type 0 Timed Trigger Disabled Description Turret Punch Time 000 00 000 min sec ms machine 18 Asmbly Line F Crakker Date joa 0 02 Crakker Time fi 4 53 20 Memory Split Power Fail Status Ok Memory saved before trigger Battery Status Ok Data Status No data in memory Recording Recording Stopped No data in memory Mode Channel Configuration 8 Long Y Figure 4 6 Query Crakker Status first dialog Status information displayed in the first resulting dialog includes settings specified and contained within the Crakker Run Program Run Program development is covered in detail in Chapter 5 Additional information about the Crakker System Base is displayed including Power Fail Status In the event that the Crakker experiences a loss of power while in the Record Ena
34. the display and the top of the circuit board front panel assembly Remove the 7 Logic Beach Incorporated www logicbeach com 8 13 8 Appendices remaining black screws from the front cover and the black front panel will separate from the two circuit board assembly below Set the front panel aside and locate the EPROM per Figure 8 5 Carefully using a small flat screwdriver pry the EPROM chip out of its socket Replace the removed EPROM with the new enclosed EPROM by carefully aligning the pins in the socket and slowly pressing it evenly into the socket Caution Orient The Eprom With The Notched End To The Left i e toward the left edge of the Crakker when viewed from front After completely seating the EPROM in the socket observe all of the pins to make sure that they have been properly seated and did not bend Looking under the part from the end is a good inspection practice Reattach the front panel to the circuit board assembly with the 7 small black screws then reinstall the Crakker into its case reconnect the power and turn on the System Power switch After a reset the display should reflect the appropriate Firmware revision number If the display does not come up turn off power and re inspect the EPROM to insure that all leads are properly seated Reset and Clear Memory within the unit using the two button sequence to reinstalled the Crakker and proceed to normal use of the unit Please do not hesitate to call Logic Beach
35. three bytes 8 channel or four bytes 16 channel Hence the maximum number of samples that can be stored in memory is a function of the Record Mode Recording Window The Recording Window is the real time that elapses during the filling of memory to the Memory Saved Before Trigger specification in the Run Program Per the previously discussed Loop Rate theory if no transitions occurred on any of the inputs while Recording was enabled a memory record would be consumed each time the elapsed timer count rolled over In the SHORT mode this would occur every 256 Loops and in the LONG mode every 65 536 Loops The maximum Recording Window can then be calculated from the number of bytes consumed per record the total number of ha in memory and the maximum time per counter overflow which is the Loop Rate Counter apacity Obviously in most cases the inputs will transition many times during the filling of memory This will force a write to memory of a record prior to the roll over of the counter Ultimately this will result in a shorter Recording Window than if no transitions occurred In the other extreme case where a transition occurred and a record was written to memory every Loop the Recording Window would be shortened a time defined by the Loop Rate the total number of Records available in memory In actuality the Recording Window will fall somewhere in between these two extremes and is impossible to predict without being able to assess t
36. toggle channel visibility within the Data View Alternatively use the menu and select View Channel Visibility Figure 6 2 Channel Visibility dialog Channel Color Right clicking on the Channel Number Description box will display two menu choices Select Color Options and the Channel Color dialog will display Figure 6 3 Set the desired color for each channel with the color palette drop down by each channel 6 2 Using the Crakker Logic Timing Analyzer 6 Captured Data Display and Output Ft Charam Cabot HEI Chae bu Chere i sare m Deia B Gere i0Toce N Chevette G Ceata roca Charred ince Chanel 12 Taare E Chevette e eare M Cherrmiiitiece A Carei Traca Graia N Cra N meiga B aere N Figure 6 3 Channel Display Color dialog Note that the global default colors used when opening a file can be set from within the File Options Trace Colors menu Elapsed Time Axis Along the top edge of the Data Window is the Elapsed Time Axis As the data is zoomed or panned see following Navigation section the time resolution tic marks on the time axis will change Trigger If the Run Program loaded into the Crakker utilized the Trigger function a vertical red Trigger Marker will display within the Data Window passing vertically through all of the channels waveforms Tip At any time keying lt F4 gt or Menu selection View Scroll to Trigger will jump the display to center up on the Trigger marker
37. usage sequence 7 1 Steps involved for use 1 4 Crakker Communications for Windows Software Overview 1 3 Crakker Communications for Windows See CCW Crakker EPROM changing 8 13 Crakker System Components 1 2 Index 1 Crakker System Base See System Base CSV format export of data 6 7 D DATA DISPLAY 4 1 Data Display Data Display View 6 1 Overview 6 1 Data Display View 6 1 Channel Color Channel color changing 6 2 Channel Display Order 6 2 Channel Numbers and Descriptions 6 2 Channel Visibility 6 2 Data Display Timing 6 4 Calibrated Uncalibrated 6 5 Considerations 6 5 Cursor Time 6 5 Delta Cursor Time 6 5 Real Time 6 5 Time Resolution Loop Rate 6 5 Elapsed Time Axis 6 3 Exporting Data to a CSV File Format 6 7 Navigation Overview 6 3 Pan Left Pan Right 6 4 Position Indicator 6 4 Zoom In Zoom Out 6 4 Print a Range of Pages 6 6 Print a Selected Page 6 6 Print a Selected Range of Data 6 7 Print Complete Data File 6 6 Printing 6 6 Trigger 6 3 Viewing Associated Run Program 6 6 Data Display Window Data Window 6 2 Data In Memory 8 2 DATA RECORDED message 4 3 Data View 4 2 Debounce Technical aspects for AC Inputs 5 7 Time skew effects 5 7 Display 2 3 Low Voltage 2 2 Monitor 2 4 NO Run Program LOADED 2 4 Press Status To Display Ch Names 2 4 Record Enabled 5 2 Run Program name 2 4 STATUS 5 5 System Idle 2 4 Time And Date 2 4 Don t Care trigger definition 5 11 D
38. 14 One or two 8 input Isolation Pods can be directly connected to the Crakker System Base via the Isolation Pod Ports Figure 2 1 located on the bottom of the Crakker In connecting the Pod s visually inspect the both the male and female connectors before plugging them together to insure that no pins are bent or dirt is on the contacts Tighten the retaining screws securely to insure good electrical connection kkk kk KK KK KKK KKK Kk kkk kkk kkk kkk CAUTION kkkkkkkkkkkkkkkkkkkkk Connect ONLY Logic Beach Isolation Pod cables to the these ports These ports are NOT for High Voltage nor Serial Communication kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk Output Alarm Port Connections 15 A single Male DB 9 connector port is provided for connection between the two internal Alarm Relays and the outside world Connection to these this port can be made using the provided mating connector pigtail or any mating DB 9F equipped cable A pin out for the connector is provided in Appendix D Alarm Output Detail on page 8 7 kkk kkk kkk kkk kkk kkk kk kkk k CAUTION kkkkkkkkkkkkkkkkkkkkkkkk Connect ONLY low voltage i e 32 Vac Vdc maximum low current 500 mA maximum loads to these Alarm Outputs This port is not for high voltage nor serial communications kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk Logic Beach Incorporated www logicbeach com 2 7 2 Crakker System Base Notes 2 8 Usi
39. 32 Cable 1 2 8 15 RUN program 4 1 Run Program 5 1 Alarm Triggers 5 10 Analysis 5 16 Channel Description Channel Description 5 5 Channel Number 5 5 Channel Setup 5 4 Developing 5 1 5 2 Memory Saved before Trigger 5 2 Monitoring AC Inputs 5 7 Program Description 5 2 Record Modes 5 2 Record Triggers 5 9 Timed Trigger 5 10 Trigger 5 1 5 9 Logic 5 11 Typical sequence of setup 7 2 Vth levels table 5 9 Index 3 S Scroll to Trigger 6 3 Serial Communication Troubleshooting 8 1 Serial communication 4 1 Serial Communications Hardware details 8 15 SERIAL PORT 4 3 Setting Crakker Time 4 5 SOFTWARE OVERVIEW 4 1 Specifications Isolation Pod Input Impedance 8 4 Input Voltage Range 8 4 Inter channel Isolation 8 4 Weight 8 4 System Base Dimensions 8 4 Display 8 3 Input Acquisition Window 8 3 Memory And Clock Backup Power 8 3 Memory Data Storage 8 3 Operating Temperature Range 8 3 Power 8 3 Specifications See Specifications Isolation Pod Status Button Display sequence 2 4 Status button 4 6 stepping through Channel Names 2 4 Stop Recording button 2 5 Exit from Monitor mode 2 5 System Base 1 2 Alarm Status Lights 2 7 Alternate Power Sources 2 2 Changing The Crakker Eprom 8 13 Clock Memory Backup Battery changing 8 11 Display 2 3 Enable Recording button 2 5 Front Panel components 2 3 Isolation Pod Connections 2 7 Liquid Crystal Display LCD 2 3 Memory and RTC
40. 5 2 Recording Modes 5 2 Using the Crakker Logic Timing Analyzer 5 Programming the Crakker with CCW The Record Mode selection offers four different modes of operation 8 SHORT 8 LONG 16 SHORT and 16 LONG that include different combinations of these parameters Different modes are offered so the User can optimize the performance of the Crakker for the particular application Generally speaking in the selection of the Record Mode the Loop Rate the rate at which the inputs are latched into memory checked for a Trigger match then stored or discarded is balanced against the other parameters such as number of channels number of triggers etc For example more active channels and or enabled Triggers results in slower Loop Rates Note A detailed explanation of the Loop Rate can be found in Appendix K Memory Utilization Loop Rate Theory on page 8 21 Although it is not critical that the information explained in this Appendix be read a basic understanding of the concepts involved will help in setup and application of the Crakker The Record Mode selection flow chart Figure 5 3 can be used to select the desired Record Mode for most applications 8 vs 16 Mode The 8 SHORT and 8 LONG modes are supplied for 8 channels of input one Pod and the 16 SHORT and 16 LONG modes are supplied for 16 channels two Pods The 16 LONG mode is also used for Timed Trigger applications with 8 channels discussed later Short vs
41. B 25 or the reverse adapters manufactured by other than Logic Beach may not work Correct Cable If a cable other than the RS 232 cable supplied with the Crakker is used insure that it is a four or six conductor cable with the modular plugs installed in the same exact configuration as the Logic Beach supplied cable Refer to Appendix H or the supplied cable for verification Baud Rate Too Fast If a substantially longer RS 232 cable is being used the Baud Rate may need to be decreased For general reference 9600 Baud rates have been successfully used between a PC and the Crakker at up to 100 feet in relatively electrical noise free environments although the RS 232 specs specify performance up to 50 feet If problems persist switch to a slower rate and repeat the test Serial Commands Following is an explanation of the serial commands and responses commonly used during the deployment of a Crakker system Query Crakker D Set Crakker Clock D N C Download Data Analyze Run Program Upload Run Program Figure 4 5 Serial Communications Buttons within CCW Set Crakker Clock Time The Crakker System Base includes a real time clock that keeps track of the date and time This internal clock is used for time stamping of recorded data To set the Crakker clock to match the PC clock click on the Set Clock button or use the menu selection Crakker Set Crakker Clock Download Recorded Data To download data from the Crakker memory click o
42. Copyright 2 2 002002 2 iii Warranty Policy iv Philosophys eon eee Be a iv Warranty s i endo eee fod ete ea eS iv Receiving Inspection Reshipment v Delivery rsp Bon ale ni hie a aaa a v Inspection a corea ie a a e Boe v Reshipment asao v Introduction 002 ceceeeeceeeeeeneeeeeeeeeneeeeeeeeenees 1 1 Manual Overview 0 1 1 Crakker System the Big Picture 1 1 Isolation Pod IP 2 1 3 Crakker System Base 1 3 Crakker Communications for Windows Software 1 3 Additional Components 1 3 Sequence of Steps to Utilize the Crakker 1 4 Applications 000 1 4 FOAtUICS 22 cos Vd ea S Ge Se ea ees 1 5 Crakker System Base s cssseeeeeeeeees 2 1 System Base Overview 2 1 Mounting and Handling 2 1 Crakker System Power 2 1 Main Power 2 1 CK XFi u be ee bea heh Re a h 2 2 Alternate Power Sources 2 2 RPS 2 eee ee oe owe eee 2 2 Memory and RTC Power 2 2 Power Failure During Recording 2 2 Crakker Front Panel and Connection Details 2 3 System Power Switch 2 2 3 Display 3 20 2 3 RS 232 Serial Communications Port 4 2 3 Push Buttons 2 4 Alarm Control Switches 10 2 6 Triggered Recording Light 11 2 7 Alarm Status Lights 12 2 7 Isolation Pod Connectio
43. DE TYPE T i DOES ELAPSED TIME YES ygs DOES ELAPSED TIME COUNTER 256 COUNTER 65 564 RECORD INPUT STATUS TO MEMORY RESET ELAPSED N TIME COUNTER ex TOO e vs NO NO COMPARE INPUT STATUS TO RECORD amp ALARM TRIGGER LOGIC Pa a DOES INPUT STATUS PROCESS ALARM Y YES S MATCH ALARM AND OR E AND OR RECORD RECORD TRIGGER F Ye TRIGGERS PERFORM MISC OVERHEAD TASKS Figure 8 9 Crakker Operational Sequence Logic Beach Incorporated www logicbeach com 8 21 8 Appendices At the start of the Record loop the Crakker latches reads the status of the input signals from the Isolation Pod The Crakker then increments a loop counter which keeps track of the number of times the loop has been performed since the Counter was last reset to 0 The software in the Crakker is designed such that each time around the loop a fixed amount of time is consumed Hence multiplying the Loop Time times the Counter value number of times around loop results in an elapsed time since the counter was last reset to 0 This elapsed time is used in a future step The Crakker compares the new Input Status to the previously stored Input Status If the new Status is different than the previously stored Status the new Status is stored into memory along with the Elapsed Time as a Record and the Elapsed Time Counter is cleared to 0 If the Input Status did
44. Details Main power for the Crakker is supplied through the Power Connector located on the right side of the bottom end of the System Base enclosure Only two of the three conductors in the connector are used Note the mechanical alignment notch and mating boss on the plug and jack An external power supply can be connected to pins 2 and 3 pin 1 is unused The Crakker will run from input voltages in ne ne of 8 to 24 VAC or VDC Polarity is not critical as the Crakker is equipped with a full wave ridge input Additional mating connectors with 4 ft leads are available from Logic Beach OUTPUT PORT POD PORTA POD PORT B PIN 1 POWER INPUT PIN 2 AND 3 8 24 VDC VAC PIN 2 POLARITY IS NOT CRITICAL BOTTOM END OF CRAKKER SYSTEM BASE RED WHITE PIN 3 RED BLACK PIN 2 GREEN PIN 1 NOT USED Figure 8 3 Crakker System Base Power Jack and Mating Connector Logic Beach Incorporated www logicbeach com 8 9 8 Appendices Notes 8 10 Using the Crakker Logic Timing Analyzer Appendix F Changing The Clock Memory Backup Battery Note Caution Upon power up of the Crakker after a system Reset or during a Status display if the message Low Voltage is displayed the LCD it indicates that the Clock Memory backup lithium cell battery is nearing its end of charge To prevent future loss of data from memory the cell should be promptly replaced Panasonic BR2325 or equivalent as follows FRONT PANEL
45. File Listing 8 17 Appendix J Crakker Communications Help System 8 19 Appendix K Memory Utilization Loop Rate Theory 8 21 Loop Rate Theory 8 21 Memory Utilization 8 23 Memory Data Storage Concept 8 23 Memory Consumption 8 23 Recording Window 8 23 Further Explanation And Examples 8 23 Memory Roll over Calculations 8 23 Caset Trass etree hy aot amp a AG ds 8 24 CaS 222 tne bb cdr Bh Brak amp ed 8 24 CASE Bie ac ee RAR EE EAS Sas 8 25 Appendix L Crakker Accessories 8 27 Ck Case Crakker Carrying Case 8 27 RPS 1 Rechargable Power Supply 8 27 Miscellaneous 8 27 Appendix M Relay Logic first out Detection With The Crakker 8 29 Copyright Using The Crakker Copyright 1992 2002 Crakker Crakker Communications Isol pod 1992 are Registered Trademarks of Logic Beach Inc Crakker Communications for Windows Software Copyright 2002 Logic Beach Incorporated La Mesa California All Rights Reserved The hardware software and operating instruction format in this manual are proprietary to Logic Beach Incorporated La Mesa CA USA Any use reproduction or dissemination of this information without express written permission from Logic Beach Inc is prohibited This document is based on information available at the time of its publication While efforts have been made to render accuracy to its content the i
46. Has Visible Damage Reshipment If it becomes necessary to reship the Crakker it should be packaged in the original container following these procedures Remove external leads and power supplies Place unit in original shipping containers with suitable packaging material for shipment or Pack according to good commercial practices using a Minimum of 4 of resilient padding around unit if original containers are not available Logic Beach Incorporated www logicbeach com v Warranty Copyright Receiving vi Using the Crakker Logic Timing Analyzer INTRODUCTION Manual Overview This Users manual provides information relative to the use of the Crakker TM Logic and Timing Analyzer manufactured by Logic Beach Incorporated La Mesa CA The manual is organized into a progression of sections to acquaint the user with the set up operation and maintenance of the Crakker A section of this manual is dedicated to explaining each of the three main components that make up a Crakker System CK 2 Crakker System Base the main instrument with display IP 2 Signal Isolation and Conditioning Pod Crakker Communications for Windows Software CCW It is Highly Recommended that the User s manual be read in its entirety before using the Crakker in a real application The last section of the manual consists of the Appendices which give detailed specifications and information for advanced applications and general reference Crakker Syste
47. I ON D DAN 2 ISOLATION ISOLATION POD A PoD B system OUTPUT ALARM POWER LY a C PORT PORT 14 15 T N FJ 1 a p Figure 2 1 Crakker System Base Front Panel and Connections System Power Switch 2 Turns the power to the Crakker ON and OFF Power must be turned OFF when replacing the Lithium Cell EPROM or any time the Crakker is removed from its case The system power does not affect data in memory or the Real Time Clock time date as both have a lithium battery backup power source Appendix F Changing The Clock Memory Backup Battery on page 8 11 This memory back up battery will protect stored data for approximately one year at normal room temperatures Display 3 An extended temperature range 2 line by 16 character liquid crystal display LCD is provided Date time status and other informational set up and operational messages are displayed on the LCD RS 232 Serial Communications Port 4 A female 6 6 RJ 12 modular phone type jack is provided A three wire RS 232 connection scheme is utilized with additional connections for future expansion Refer to Appendix H RS 232 Cable Adapter And Port Specifications on page 8 15 for a detailed pin out Logic Beach Incorporated www logicbeach com 2 3 2 Crakker System Base Note This port is connected to the RS 232 serial port on the PC via the supplied serial cable and adapter see Components in Chapter 1 A standard four conductor telephone
48. Screen Data Window Timing displays representing each channel are displayed in the Data Window horizontally with a Hi or Lo state The state represents the Channels voltage level at that point in time relative to the Voltage Threshold programmed into the Run Program Channel Numbers and Descriptions Along the left edge of the Data Window Figure 6 1 are Channel Numbers and their associated descriptions names The Channel numbers correspond to the Isolation Pod channels the letter prefix indicates either Pod A or Pod B if equipped with two Pods Associated channel descriptions carry over from descriptions assigned during development of the Crakker Run Program To view Channels B1 through B8 scroll the Data Window using the slider on the right edge of the Data Window Channel Display Order The order of the channel display top to bottom by default is per the Channel s associated Pod Number e g A1 A2 A3 To facilitate inter channel timing measurements the top to bottom ordering of channels can be simply changed To move a channel to a different location in the top to bottom order simply click on the Channel Number Description box and drag the channel up or down to the desired location Channel Visibility Right clicking on the Channel Number Description box will display two menu choices Select Channel Visibility and the Channel Visibility dialog Figure 6 2 will display Highlight channels then select Show or Hide to
49. Sec Al A2 3 ABs Relay K3 AB Alarm Relay K6 gt For Help press F1 Session Ended 03 23 02 17 00 51 165 728 us sample x 0 010 EZ Figure 8 14 First Out Detection Relay Sequence Another technique which would give the complete sequence of openings of the relays associated with the Secondary fault string is to monitor the individual Primary Fault circuits powering the Secondary Fault relays assuming that they are driven by an electrical signal and not a mechanical actuation such as an RPM governor This could be readily implemented by clipping Pod input leads across each of the Primary Fault circuit relay coils or switches as opposed to their contacts in the Secondary relay string as described above As in the above example an additional Pod channel can then be connected across the Alarm Relay K6 coil or contacts for use in Triggering 8 30 Using the Crakker Logic Timing Analyzer Numerics 16 Long 5 3 16 Short 5 3 8 Long 5 3 8 Short 5 3 A AC Input Measurement 5 7 Adapters 1 2 Alarm Follows Record Trigger 5 12 Alarm Output Latched Momentary 5 16 Alarm Output Detail 8 7 Alarm Outputs 5V Output 8 7 Crakker circuit ground 8 8 Output Port pin and function listing 8 7 Overview 8 7 Recording Status 8 7 RPS 1 Control 1 8 7 RPS 1 Control 2 8 7 Alarm Status Lights 2 7 Alarm Trigger 5 10 Analysis of Run Program 5 16 Analyze Run Program 4 6 B
50. Slower baud rates may rectify the situation in certain conditions Overrun Error Crakker UART port is receiving characters faster than it is able to take them out of the port May indicate a hardware problem Retry communications at a slower Baud Rate Contact factory technical support for further assistance Parity Error Data byte was received incomplete or with the wrong character length Problem may be noise or hardware related problem Reduce cable length and or Baud Rate and retry Contact factory technical support for further assistance Comm Error Or Xmit Error Retry communication Contact factory technical support for further assistance Comm Timeout Indicates incomplete or corrupted Run Program file is being sent to Crakker Check the Run Program and retry Contact factory technical support for further assistance Data In Memory Displayed during a sequence of messages when Enable Recording is pressed and data is already in memory Transfer recorded memory to PC clear the Crakker memory and retry No Run Program Loaded Displayed during a sequence of messages when Enable Recording is pressed A Run program must be developed from within CCW and transferred to the Crakker before Enable Recording is pressed 8 2 Using the Crakker Logic Timing Analyzer Appendix B Crakker Technical Specifications System Base Main Power Requirements Input Voltage Range 9VDC nominal 8 16VDC 10 16VAC Current Single Po
51. Technical Staff with any questions 8 14 Using the Crakker Logic Timing Analyzer Appendix H RS 232 Cable Adapter And Port Specifications Figure 8 6 documents the connections for the Crakker System Base serial port serial cable and DB 9 and DB 25 adapters Note Cables and adapters not provided with the Crakker may cause wiring errors and serial comm problems Insure that the wiring of any non Logic Beach provided cables or adapters conform to the following wiring connectivity lt PLUG CONTACTS SHOWN BOTH ENDS 6 CONDUCTOR PHONE CABLE PIN 1 5 VDC CURRENT LIMITED 2 CRAKKER GROUND 3 TRANSMIT CRAKKER OUTPUT 4 RECEIVE CRAKKER INPUT 5 DTR NOT USED 6 DCD NOT USED RJ 12 TO DB 25 ADAPTER 6543 21 SERIAL PORT FRONT PANEL OF CRAKKER RJ 12 TO DB 9 ADAPTER Figure 8 6 Crakker Serial port cable and adapter wiring details Logic Beach Incorporated www logicbeach com 8 15 8 Appendices 8 16 Using the Crakker Logic Timing Analyzer Appendix Crakker Communications File Listing After a normal Windows install is complete Chapter 4 a directory Folder containing necessary Crakker Communications for Windows files will exist on your hard drive Following is a partial listing of some of the files which can be referenced for learning CCW EXE The main Crakker Communications program EXAMPLE1 RUN A sample Run Program which can be open
52. Using 16 LONG mode 28 670 records can be stored If events occur every 1 second or less the Crakker will not force a write of a record as the interval elapsed time counter will not overflow the equation is then simply 28 670 records 1 sec record 28 670 seconds 28 670 seconds 8 hours until memory starts to be overwritten 8 24 Using the Crakker Logic Timing Analyzer Case 3 Assume an event occurs every minute as follows 60 SECS 26 4 SECS 26 4 SECS 7 2 SECS Figure 8 12 Example pulse event occurring once per minute If running the Crakker in the 8 LONG 3 record triggers 2 Alarm triggers mode the interval elapsed time counter will overflow every 26 4 seconds and a record will be written unless a transition occurs which forces a record to be written then resets the elapse time counter to 0 Every minute 3 records are written to memory 1 at the signal transition time and 2 and 3 due to elapsed time counter overflows In this case the total time before memory is overwritten is 38 227 records 3 records minute 12 742 mins 3 5 days If the 16 LONG mode 3 Record triggers 2 Alarm triggers were used the elapsed time counter would not overflow until 65 536 505us 33 seconds and only 1 forced write would occur The total record time for this mode would be 28 670 records 2 records min 14 335 mins 9 95 days Logic Beach Incorporated www logi
53. a quality easy to use product as well as providing cheerful competent customer support through our Field Sales Representatives and our in house factory staff We always welcome your input on ALL subjects staff performance literature pricing customer support product enhancements and any other comments complaints or compliments that you feel would help make Logic Beach an even BETTER company Warranty Logic Beach Incorporated will repair or replace free of charge all parts of said products which are returned for inspection to its factory within one year from the date of shipment from Logic Beach This is provided such an inspection discloses to the satisfaction of Logic Beach that the products are defective in material or workmanship Equipment returned to Logic Beach for repair must be shipped freight prepaid Repairs necessitated by misuse abuse negligence accident or alteration of the equipment are not covered by this warranty No other warranties are expressed or implied specifically those of merchantability or fitness for specific purpose Logic Beach is not liable for indirect or consequential damages Before returning any equipment to Logic Beach please contact us via phone to review the problem If you should call please have the following information available Product Model Serial Number of the Unit Problem or Reason for Returning Goods Contact Name and Telephone Number Non warranty repairs require
54. age of current in their OFF state that can result in minimally loaded outputs floating up to 40 to 50 VAC Evidence of this phenomenon is sometimes seen in where a pilot light on a controlled output may glow dimly however the output it is connected to is theoretically OFF The leakage current is sufficient to dimly illuminate the pilot light but insufficient to energize the main load To handle the interface to these type outputs the Pod Vth thresholds can be set to a higher level thereby requiring a solid ON driving voltage to be sensed as a logical ON by the Isolation Pod By measuring the ON and OFF voltage levels during normal cycling of an electrical node a feel for the switching levels can be achieved Alternatively a value substantially higher than the halfway point may be used for example setting the Vth to 80V for use on a 120VAC rms system Proper Vth setting can be verified through use of the Monitor command on the Crakker System Base Monitor 6 on page 2 4 Connecting The Pod To Signal Nodes Note Isolation Each channel of the Pod is electrically isolated from the others and from the Crakker Due to this isolation feature each channel within a single Pod can be connected to a different voltage node on the system to be monitored The Channel leads are NOT polarity sensitive A Bit Of Theory The Pod signal lead pair is connected to a voltage divider within the Pod internal circuitry Figure 3 3
55. anslate into a rapid sequence of on and off voltage levels being detected by the Pod circuitry Figure 5 6 shows four channels of data collected from the same set of contacts on a large relay with various amounts of Debounce specified The first channel has no Debounce and multiple transitions can be seen zooming in on the data reveals six high low cycles If no Debounce is used i e 0 The Crakker will trap these rapid voltage transitions into memory and could possibly present a combination that fulfills a misleading TRIGGER condition If these transitions are not desired during the playback of the collected timing state data the Debounce can be enabled to filter out these transitions Logic Beach Inc Crakker Communications Debounce run O x File Program Crakker View Help auen BH BOT MARM UNCALIBRATED Cursor Time Day 0 00 00 39 666 5 Example effects Real Time 03 23 02 19 04 22 Position Indicator of Debounce Delta Cursor setting 2 39 561 9 Sec 39 591 3 Sec 39 620 6 Sec 39 649 9 Sec 39 679 35 Al No Debounce 30mS of Debounce 4 7OmS of Debounce B gt For Help press F1 Session Ended 03 23 02 19 04 42 165 728 ys sample x 0 200 7 2 3 50mS of Debounce 5 6 A A A A A A Figure 5 6 Effects of Debounce Setting on Switch Closures A value of 30mS can be used for small switches and a value of 50 or 75 for larger switches contactors may be required Experimentation through a series o
56. ate rapid movement of the Cursor the Cursor moved then Zoomed In again to the CALIBRATED level Time resolution will be retained throughout the Zooming processes Viewing Associated Run Program During the review of a recorded data it can be advantageous to know the details and settings used in the Crakker Run Program during the data collection process Quick access to this information is available via the Crakker View Run Parameters menu selection Upon selection a dialog will open that includes the associated Run Program particulars and trigger conditions If desired the displayed parameters can be exported to a new Run Program using the Export button at the bottom of the dialog This will generate a new Run Program that can be loaded into the Crakker and used The resulting Run Program will be identical to the original Run Program used in the original data collection phase Printing From within CCW timing data can be printed on the installed Windows printer A number of printing methods can be used to meet the desired hardcopy annotation needs Printing is performed from the conventional File Print menu or Print and Print Preview buttons on the Button Bar and the follow on Print dialog Typically it is desired to select Landscape mode for timing printouts Print Complete Data File The full data file can be printed on consecutive sheets by selecting the Print Range All xxx Pages radio button The file will be printed at
57. ately cancels the session and the display changes from RECORD ENABLED lt WAITING gt to RECORD ENABLED lt FINISHED gt Data recorded in memory between the ENABLE of RECORDING and the STOP of RECORDING will be retained in memory and must be transferred to the PC or CLEARED before another RECORD session can be ENABLED Reset Clear Memory 9 Used in conjunction with the Stop Recording button to perform system Resets and if desired Clear data memory This button must be pressed simultaneously with the Stop Recording button for response to insure against accidental clearing of memory If data is present in memory from a prior recording session when the two buttons are pressed simultaneously the following message sequence will display CRAKKER VX X c 1992 RESET AGAIN TO CLEAR MEMORY At this point a Crakker system RESET has occurred without affecting data stored in memory If no further action is taken the display will return to Logic Beach Incorporated www logicbeach com 2 5 2 Crakker System Base DATA RECORDED lt FINISHED gt or DATA IN MEMORY SEND AND CLEAR If erasure of stored data in Crakker memory is desired the two buttons must be depressed a second time while the RESET AGAIN TO CLEAR MEMORY message is still displayed A message will then prompt the User ARE YOU SURE RESET IF YES If memory clear is desired perform a third two button RESET This action will initiate a memory erasure sequence with a
58. base for the measurements In the SHORT mode a clock that has a shorter time span is used Conversely a longer time span clock is used in the LONG mode Ultimately this generally means that data memory will be consumed at a faster rate using the SHORT mode than in LONG mode configured sessions and the maximum window of time for which the Crakker can store data will be longer for the LONG mode Note An exception to this occurs when monitoring inputs that are changing very quickly In this case data is stored due to changes on the inputs not due to an overflow of the elapsed time clock and more data can actually be stored in memory in the SSHORT mode since a SHORT sample requires less memory space to store than does a LONG sample 5 3 Using the Crakker Logic Timing Analyzer 5 Programming the Crakker with CCW J IS TIMED TRIGGER YES 3 16 LONG MODE REQUIRED NO 1 J IS ANYCHANGE N TRIGGER REQUIRED T IS ALARM S REQUIRED NO 1 MULTIPLE TRIGGERS REQUIRED NO L 8 OR 16 CHANNELS ji ra BOR 16 CHANNELS REQUIRED 16 T 16 LONG MODE X REQUIRED 8 ij IS REQUIRED LOOP RATE lt 220uS NO 8 LONG MODE 8 SHORT MODE f Z IS REQUIRED LOOP RATE lt 455uS NO 16 LONG MODE 8 LONG MODE 16 SHORT MODE NOTE REFER TO TEXT FOR ADDITIONAL CONSIDERATIONS WITH RESPECT TO
59. ble only in the 8 Long and 16 Long Record Modes Each of the two Alarms has a single associated Trigger that will cause its Alarm to turn ON when the Trigger conditions are met Unlike the Record Triggers only one Trigger word is available for each alarm hence no logical ORing can be programmed A special alarm mode where the Alarm follows the Record Triggers is provided Any Record Trigger Similar Trigger conditions and editing techniques are used for the Alarm Triggers as are used in configuring the Record Triggers 5 10 Using the Crakker Logic Timing Analyzer Alarm 1 Trigger Alarm 2 Trigger Don t Care any Rec Trigg E Dor Cae Afrign x Dont care Figure 5 11 Alarm Trigger Configuration Six types of Trigger Logic are supported by the Crakker 1 DON T CARE If Don t Care is selected for a channels entry in a Trigger list box Figure 5 13 the state and transitions associated with that channel are ignored by the Crakker during the Trigger determination process All channels that are not to be involved in determining a Trigger condition should be set to Don t Care 2 STATE TRIGGER LOGIC Input Channel States refer to an input that is either High On or Low Off when scanned by the Crakker An example of a State type Record Trigger is demonstrated in Record Trigger 3 in Figure 5 10 Trigger when Rotation Motor is ON High and the Head Ejector is ON High In the Trigger list box State Triggers a
60. bled mode it performs a very fast orderly shut down and preserves all data currently in memory If this occurs either a Failed After Trigger or a Failed Before Trigger message will be displayed indicating to the User the status at the time of power failure Data can still be transferred from the Crakker to the PC and displayed in spite of the power failure 4 6 Using the Crakker Logic Timing Analyzer 4 Crakker Communications for Windows Battery Status If the lithium battery used to power the Crakker internal Real Time Clock and backup internal memory is low on energy a Low Battery message will be displayed If this message is seen desired data in memory should be transferred from the Crakker to the PC and the lithium cell should T PEES see Appendix F Changing The Clock Memory Backup Battery on page 8 11 Data Status An indication if data is currently maintained in memory or if it has been cleared since the last Recording session Recording Stopped The time and date when the Crakker stopped writing data to memory during the last Recording session Selecting the Channel Configuration button from the Crakker Status dialog results in a second dialog display detailing the Record Alarm and Channel information for the Run Program currently loaded into the Crakker Memory Channel Configuration X Threshold Description Record Record 2 Al 70 ms 2 5 Turret Motor High Low A2 Oms 25 Index Detent Don t Care Rising E
61. bsolute timing and state analysis File Export The collected data file can be converted into a Comma Delimited File format csv which in turn can be opened with Microsoft Excel and other spreadsheet applications Installation and an introduction to the Crakker Communications for Windows software is covered in this chapter Following chapters detail using CCW for programming the Crakker and captured data display and data export PC Hardware Software Requirements CCW runs on WinTel compatible PC s running Microsoft Windows 98 2000 XP and NT An RS 232 serial port is required for communication with the Crakker System Base and a CDROM drive for installation of CCW CCW Installation 4 1 CCW is provided on CDROM packaged with the Crakker System Base To install CCW perform the following steps Close all currently running applications Insert the provided CDROM into the drive Upon drive tray closure the installation program will automatically start In the event that the installation does not automatically start select the Run menu from the Start if this does not occur use the Start menu to select Run then select the file Setup exe on the CDROM drive Using the Crakker Logic Timing Analyzer 4 Crakker Communications for Windows Installation will automatically proceed and requests will be made for the desired installation directory The default installation directory recommended is C Windows Program Files Log
62. cbeach com 8 25 8 Appendices Notes 8 26 Using the Crakker Logic Timing Analyzer Appendix L Crakker Accessories Ck Case Crakker Carrying Case Waterproof hard shell Carrying Case for Crakker System Base two Isolation Pods leads and documentation Very convenient for keeping the system components organized when not in use as well as for transporting RPS 1 Rechargable Power Supply The RPS 1 is a self contained portable power source with two regulated voltage outputs which are powered from two internal 12VDC 2AH gel cell batteries The RPS 1 comes complete with a 120VAC 12VDC recharging adapter and mating connector for direct connection to the Crakker The RPS 1 can supply the Crakker with field power for approximately 24 hours before recharging is required The RPS 1 has two User programmable output power supplies each capable of delivering up to 300 mA in from 3 5 to 22VDC The RPS 1 differs from the RBP 12 above in that it is a general purpose power supply that may have other lab and field power applications when not in use with the Crakker Miscellaneous Other miscellaneous supplies and accessories are available from Logic Beach for the Crakker System Please contact the factory for pricing and availability Custom length Pod Test Leads Custom length Isolation Pod to System Base interconnect cables Logic Beach Incorporated www logicbeach com 8 27 8 Appendices 8 28 Using the Crakker Logic Timing Analyz
63. cord And Alarm Triggers Depending on the Record Mode selected various quantities and types of Triggers are available After configuring the desired Triggers use the Run Program Analysis button or menu and perform performance analysis of the configuration If speed is a concern minimizing the use of channels Triggers and Alarms will optimize the Loop Rate Appendix K Memory Utilization Loop Rate Theory on page 8 21 Save Exit After development of the Run Program save it to disk using the conventional Windows Save or Save As buttons or menu selections Uploading The Run Program Connect the Crakker to the PC serial port with the provided RS 232 cable and adapter From the CCW Program View window open the desired Run Program from disk if not already open within CCW then select the Upload Program to Crakker button to transfer it to the Crakker s memory After sending the Run Program to the Crakker use the Crakker Query Crakker Status menu selection to verify proper time date and Run Program configuration Isolation Pod Setup Carry the Crakker and Isolation Pod s to the site of the control system to be analyzed Before Connecting Any Pod Leads To High Voltage connect the provided low voltage power supply to the Crakker System Base power jack Logic Beach Incorporated www logicbeach com 7 3 7 Utilizing The Crakker Press the Status button on the Crakker System Base and the Status display sequence will comm
64. corresponding CLEARED MEMORY display kkkkkkkkkkkkkkkkkkkkkkkkkkk H kkkkkkkkkkkkkkkkkkkkkkkk Caution IF DATA STORED IN MEMORY IS TO BE RETAINED THE DATA MUST BE TRANSFERRED TO THE PC BEFORE CLEARING MEMORY DATA CLEARED FROM MEMORY CANNOT BE RESTORED kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk At the completion of the memory clearing process the LCD displays READY Total available memory can be verified with the Status Time Button Note Ifa Power Failure occurs during a RECORDING session appropriate messages will be displayed on the LCD indicating the occurrence of the failure and when it happened Alarm Control Switches 10 Two Alarm relay isolated N O contact closure outputs are provided on the Crakker These Alarm outputs are energized if the Crakker input signals from the Pod s match the programmed Alarm Triggers contained in the Run Program currently running in the Crakker The ALARM 1 and ALARM 2 3 position switches on the front panel of the Crakker are provided for manual override of the ALARM outputs Description of operation in the three positions follow OFF in the center position the Alarm Output relays are disabled and can not be turned ON by the Crakker software TEST when the switch is toggled to the right the Alarm Relay is forced into an ON state and the relay contacts are closed This is a momentary position and when the switch is released it returns to the OFF position
65. ctions detail the User set up of Run Program parameters from within CCW To display the Program View window click on the Program View button on the Button Bar or select View Program View from the menu Lege Beach Inc rekha Coseverecoteerne Ueber rue Els Boyes Crabs Yor Llp waa AE Ovit Apc Vak Ares Saeed beksa bpa Taai es Alun Gutper 1 Panden denn Guigud 2 Fureciion CA Latehed birena CI Lashed hey Thamal Derrian Cigbounee Tieeh FarrsiT igy 1 Fa He pee M Figure 5 1 Program View Screen Run Program Configuration Within the Program View Screen settings are entered to result in a desired Run Program The first step in development of a Run Program is mentally defining the condition s desired that will initiate the trapping of data into Crakker memory These conditions will generally be indicative of a fault or erroneous condition within the control system to be monitored and will vary in complexity depending on the application The conditions could range from something as simple as monitoring an Emergency Stop button or PLC input from a production line to more complex triggering conditions explained below Once this Trigger condition is defined development of a Run Program can commence 5 1 Using the Crakker Logic Timing Analyzer 5 Programming the Crakker with CCW Opening and Saving Run Program Files Every Run Program has a filename with the extension RUN Typically many Run Programs may be de
66. d by low motor drive current etc Detecting which of these faults occurred first hence the term First Out can be quite confusing if not impossible to establish without the Crakker Connecting the Crakker Portable Logic Timing Analyzer to the electrical nodes as shown in Figure 8 13 will allow detection of the first relay to open In the setup of the Crakker Run Program for the example circuit shown Triggering on actuation of the Alarm Rising Edge or HIGH type trigger will trap the series relay string logic and timing to memory In the Data Display collected from this circuit Figure 8 14 it is obvious that relay K4 opened first At the same time that relay K4 opens voltage is lost at relay K5 hence it simultaneously indicates low In the trip sequence it can also be seen that relay K3 opened some 17mS later The opening of relay K3 was probably just a follow on result of the failing control sequence In the timing diagram the vertical Logic Beach Incorporated www logicbeach com 8 29 8 Appendices lines red aligned with relay K6 s Lo to Hi transition marks the trigger as a result of the alarm relay actuation Logic Beach Inc Crakker Communications FirstOut run File Program Crakker View Help auje BH WO Gf QQ wi UNCALIBRATED Cursor Time Day 0 00 00 07 880 8 First Out Demo Real Time fosr2a02 17 00 43 Position Indicator Example Delta Cursor 7 652 9 Sec 7 799 9 Sec 7 946 939 Sec 8 093 939 Sec 8 240 9
67. d connected 110mA 9VDC Two Pods Connected 180mA Memory And Clock Backup Power Internal lithium cell P N BR2325 Panasonic or equivalent Lifetime of approximately 6 months to 1 year depending on ambient temperature and use Memory Data Storage Refer to Appendix K for detailed information on memory capacity Input Acquisition Window In 8 channel Record Modes the actual time required to latch the inputs is approximately 50nS In 16 channel modes approximately 100nS No detectable skew exists between all A channels nor B channels Approximately 5uS maximum skew exists between latching of A and B channels Ultimately these acquisition rates are negligible with respect to the Loop Rates Refer to Appendix K Display Two line by 16 Character Liquid Crystal Display LCD Operating Temperature Range 10 to 60C 14 to 140F Shipping Temperature 30 to 65C 22 to 149F Relative Humidity Operating And Storage 90 non condensing Shock And Vibration The Crakker and Pods will withstand the shock and vibration conditions normally encountered during regular commercial shipping and handling Logic Beach Incorporated www logicbeach com 8 3 8 Appendices 8 4 Using the Dimensions 9 75 H x 8 5 W x 5 5 D Weight 4 5 LBS Isolation Pod Input Voltage Range 280 Vac rms maximum 400 Vdc maximum Inter channel Isolation 600 VAC Input Impedance DC 220 000 ohms AC 50 Hz130 Kohms
68. dge A3 O ms 2 5 UUT Detect Prox Don t Care Don t Care Ad Oms 2 5 Punch solenoid High Don t Care A5 O ms 2 5 Head ejector Don t Care Don t Care AB O ms 25 Extra Don t Care Don t Care A O ms 25 Extra Don t Care Don t Care Extra Don t Care Don t Care Alarm 1 Latched Alarm 2 Momentary Figure 4 7 Crakker Query Status currently loaded Run Program Configuration CCW Default File Paths Default paths to be used for the Run Program and downloaded data files can be specified in the Options dialog Figure 4 3 Check to enable the default path s and browse or enter the desired folder location 4 7 Using the Crakker Logic Timing Analyzer 4 Crakker Communications for Windows 4 8 Using the Crakker Logic Timing Analyzer 5 Programming the Crakker with CCW PROGRAMMING THE CRAKKER WITH CCW Overview The first step in implementing a Crakker Recording session is the development of a Run Program A Run Program is a small file that is developed within CCW then transferred to the Crakker memory The Run Program contains configuration and operation information that the Crakker uses during its data Recording function e g the Trigger Word alarm conditions etc The file is called a Run Program because it contains information that the Crakker utilizes while it is RUNning during a Recording session Run Programs developed in CCW are stored to disk with the file extension RUN e g FILENAME RUN The following se
69. e control system under test see Appendix C Isolation Pod Circuit Design on page 8 5 for details kkk kk KK kk kkk KEK Kk kkk kk CAUTION kkkkkkkkkkkkkkkkkkkkkkkkkkk The isolation pods are designed for connection to high voltage however care must be taken in the set up and utilization of the pod and its leads In use the clips will have a small exposed bare area the J hook at the end that must be prevented from shorting to other points leads wires as well as to humans Never remove the plastic cover from the pod as no user serviceable parts are inside and high voltage components will be exposed kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk Mounting and Handling The Pod is supplied with a metal hanger Figure 3 1 that can be used for temporarily mounting the Pod near the connection points to be monitored Logic Beach Incorporated www logicbeach com 3 1 ISOLATION PODS The Pod enclosure is sealed from dirt and dust however the Pod should not be used in wet areas without further protection The Pod cover should never be removed as high voltage nodes will be exposed and no User serviceable parts are contained within the enclosure The enclosure is made from plastic that can melt if exposed to high temperatures Do not subject the Pod to extremely high heat 60C 140F maximum operating ambient temperature The electronic components within the Pod are designed for rugged normal use however if the
70. ed from within the Program View window of CCW EXAMPLE1 REC A sample REC file containing actual data collected by a Crakker The data file can be opened and viewed from within the Data View window of CCW EXAMPLE2 RUN Another sample Run Program which can be opened from within the Program View window of CCW EXAMPLE2 REC A second sample REC file containing actual data collected by a Crakker The data file can be opened and viewed from within the Data View window of CCW README TXT Check for this file may not be on disk for late breaking tips comments and other information relative to the Crakker System more current than the last issue of the Crakker User s Manual This file can be read using Notepad or other text editing software Logic Beach Incorporated www logicbeach com 8 17 8 Appendices Notes 8 18 Using the Crakker Logic Timing Analyzer Appendix J Crakker Communications Help System Crakker Communications for Windows has been provided with extensive Windows Help for quick access during use Clicking on the Help buttons on the Button Bar at any time will open the Crakker Help dialog and assist in explaining the operation of the Crakker Figure 8 7 CCW Help Buttons Prograin view trtrtducng Crakker E cera Snacted Tha Progra iow displays a screen used for the E Tosk ar devainpment of s Crakker EJH program The Cracker E Siha Bar partons Ha Thjgered dala cakcrbn and slamming hrern EJ Hiau Oa mma
71. elay Outputs Current Sinking Inputs PLC controls commonly use current sinking digital inputs that turn ON when they are connected to the AC HOT line A typical connection with a proximity or limit switch is shown in Figure 3 5 When the switch closes a current path exists between the 120VAC HOT terminal and the PLC Input Terminal turning that input ON Figure 3 5 shows one method of connection of the Pod leads to this type of circuit In an open switch condition OV exists across the Pod leads logic 0 When the switch closes 120Vac is supplied to the PLC Input Terminal turning it ON as well as being impressed across the Pod leads logic 1 For inputs operating from higher voltage supplies e g 120VAC and above as shown this is the preferred method of connection as the small current that flows through the Pod circuitry will not have any effect on the PLC input circuitry as the two circuits are in parallel The only concern with this connection configuration might be with respect to the turn off speed of the Pod input circuitry When the Prox Switch is open the Pod input circuitry is shorted through the circuitry contained within the PLC however if the PLC utilizes some very high impedance input circuitry the Pod circuit may have as high as 5 mS of delay before it turns off This delay can be minimized by setting the Vth to a higher level e g for a 120VAC supply setting the Vth at 80V rather than at 20V will speed up the system res
72. electrical connections from the Pod to the field control points Debounce The text boxes immediately to the right of the Channel Descriptions allow for a setting of Debounce value for each channel Four different levels of Debounce are available 0 30 50 and 70 mS Use the pull down menu to select the desired Debounce value for the channel The Debounce function enables different levels of filtering on each channels input to the Crakker The levels correspond to an approximate Time Constant which can be used as a figure of merit for filtering and smoothing of input signals Common applications and typical Debounce settings follow SWITCH CONTACT DEBOUNCE When mechanical switches contactors and relays electrical contacts close they generally DO NOT switch together cleanly making immediate solid electrical contact In actuality they go through a short cycle of bouncing together opening bouncing together opening etc until they finally come to rest in the closed position Figure 5 5 For a physically small switch this cycle may consist of 5 to 10 bounces all occurring within 20 mS of time larger relays with physically larger contacts and supporting arms impact harder and bounce longer 5 5 Using the Crakker Logic Timing Analyzer 5 Programming the Crakker with CCW Figure 5 5 Contact Bounce In switches utilized in DC and to a certain extent in AC circuits this contact bounce will tr
73. ence When the LCD displays Press Status to Display Ch Names press the Status button again The LCD will then display and hold the first Isolation Pod channel name as entered into the Run Program Pressing the Status button again steps the display through each of the channels With this sequence the Quick Connect Pod Leads can be connected to the various nodes on the control system under test KRKKKKKKKKKEK KKK KK kkk kkk k NOTE kkkkkkkkkkkkkkkkkkkkkkkkkkk It is highly recommended that if at all possible power be disconnected from the control system to be monitored before connecting any Pod test leads This is to minimize the risk of electrical shock or erratic unexpected operation of the equipment under control kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk kkkkkkkkkkkkkkkkkkkkkkk H kkkkkkkkkkkkkkkkkkkkkkkkkkkk Caution Extreme care should be exercised in connecting the Pod Quick Connect leads to any high voltage nodes The probe tips have exposed conductive surfaces when installed Mishandling could result in fatal electrical shock Before making any connections to a control system insure that the addition of the Pod circuitry will not interfere with the normal control function Refer to Chapter 3 and Appendix L for additional circuit connection details Do Not Hesitate To Call Logic Beach For Technical Support Assistance kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk Connect the Pod low voltage
74. er Appendix M Relay Logic first out Detection With The Crakker Many processes and control systems employ an Alarm Shutdown Fault Loop Figure 8 13 consisting of a secondary string of Normally Open relay contacts K1 thru K5 wired in series with a Normally Closed alarm relay coil K6 In the event that any of the series relays are de energized i e a fault occurs on any of the primary circuits powering the coils of relays K1 K5 the Alarm relay K6 coil will be de energized When relay K6 is de energized its Normally Closed contacts spring closed which in turn sounds an alarm or shuts down the process Note that many controls may employ the reverse logic on the Alarm Relay by using the relay s Normally Open contacts K1 K5 HAVE NORMALLY OPEN CONTACTS 120VAC 120VAC NORMALLY CLOSED K6 contacts em oe NEUTRAL Lt ALARM NEUT NEUTRAL iT j IP 2 ISOLATION POD Q E ISOLATION POD Figure 8 13 Secondary Relay Fault String First Out Pod Connection Example In many applications when one fault is detected and the process starts to shut down other relays in the Secondary fault string also open due to interdependence of parameters being monitored e g a paper web break in a newspaper printing press may initially cause a fault due to detection of broken web quickly followed by overspeed followe
75. ery obvious to operators near a process or line In this case an instructed operator could press the Stop button on the Crakker to end the Recording Session and trap data in memory In manual Trigger applications it is important that the Crakker be stopped before valuable data in memory is overwritten In the fastest mode 8 Short Mode this occurs within approximately 14 minutes On rare occasion it may be nearly impossible to identify an appropriate Trigger to use In these cases it may be necessary to resort to iterations of various Triggers to determine the problem However judicious selection of the Trigger for each attempt should gain valuable insight into the problem or at least eliminate some variables Develop The Run Program After an appropriate Trigger condition has been identified the Run Program to be used by the Crakker can be developed Boot up the PC running the Crakker Communications CCW program and select the Program View mode to start developing a Run Program Throughout the development of the Crakker Run Program the Analysis feature should be used to evaluate the expected performance of the Run Program Remember that a Crakker must be connected via the serial port to use the Analysis function Filename Description Choose a logical Filename and three line Program Description that will assist future Users in determining the utility and application of the Run Program Memory Saved Before Trigger Select the
76. f short data recording sessions may be the best technique to use for selection of the optimum Debounce level 5 6 Using the Crakker Logic Timing Analyzer 5 Programming the Crakker with CCW Note Use of the Debounce function actually slows down skews the effective detection rate of switch transitions by approximately the value selected In critical high speed troubleshooting applications more insight into the system performance may be gained by leaving this Debounce value OFF set to 0 with the trade off that the data display may be considerably more visually complex due to the multiple transitions at each switching Time skew can readily be seen between the different levels of Debounce in Figure 5 6 MONITORING AC INPUTS The actual voltage during one cycle on electrical nodes handling AC currents transitions from the peak AC voltage through zero to a reverse polarity peak voltage then back through zero to the peak voltage as seen Figure 5 7 If the Crakker is connected directly to an AC voltage node it will record these cycles as a continuous string of ON OFF transitions when in actuality the node is in the ON state AC WAVEFORM L FULL WAVE NEN RN ENN EN EN A RECTIFIED POD CRAKKER RECORD 2O Hoan OF AC INPUT Figure 5 7 Pod Input Circuitry AC Rectification Note For the technically curious Pod input circuitry effectively full wave rectifies the incoming AC signals so the Crakker sees a signal that tran
77. ggering applications as follows Trigger when Pump 1 is ON and Valve 7 is OFF and when Pressure Switch 8 turns ON or if the Temperature regulation Switch turns ON more frequently than once per 100mS 5 12 Using the Crakker Logic Timing Analyzer Record Trigger 1 Don t Care Don t Care Rising Edge Falling Edge High eee ele Any Change Care 7 Figure 5 13 Record Trigger Options Alarm 1 Trigger An Falling Edge High Figure 5 14 Alarm Trigger Options Trigger Relationships Reviewed Record and Alarm Trigger conditions are logically AND ed within a single trigger s vertical column For example in Figure 5 10 Channel A1 and Channel A4 have to be HIGH for the trigger condition to be met Triggers defined in columns are logically OR ed For example in Figure 5 10 all three Record Triggers are used So if conditions in Trigger 1 OR Trigger 2 OR Trigger 3 occur data surrounding the trigger will be logged to memory Timed Trigger Details The Timed Trigger can be configured as a fourth Record Trigger and logically OR ed with up to three conventional logic type Transitional or State Triggers The Timed Trigger is available only in the 16 Long Recording Mode When the Timed Trigger is enabled the Trigger rows associated with Channels A1 and A2 are highlighted The Timed Trigger applies only to the signals received from Pod channel A1 and A2 Specified activity of Channel A1 initiates the timi
78. he lt Page Up gt and lt Page Down gt keys Data Display Timing Various timing information is available in the Data Display View Across the top of the Data Window is a time axis for visual reference of elapsed time from the start of the file time 0 On screen text boxes display 6 4 Using the Crakker Logic Timing Analyzer 6 Captured Data Display and Output Cursor Time When the mouse pointer is moved over the Data Window a green vertical cursor appears and moves with the pointer The elapsed time from the start of the file is displayed with in the Cursor Time box The time display format is Day HH MM SS ddd d where H corresponds to Hours M to minutes S to seconds and d to decimal seconds milliseconds to microseconds Real Time As the vertical cursor moves over timing data the absolute real time is also displayed Here the date as well as the time in HH MM SS format is provided Note that when zoomed in to a high level of time resolution this Real Time display may not appear to update this is because all of the displayed data is within a one second slice of time Delta Cursor Time Time measurements of a waveform or between waveforms can easily be measured with the Delta Time feature The Delta Cursor Time displays the length of time from the start to the end of a highlighted slice of the data To highlight a section of the timing display left click and drag the vertical cursor across the displayed timing data U
79. he dynamics of the control system nodes being monitored For this reason a massive amount of memory has been supplied integral to the Crakker System Base allowing it to meet the needs of almost all applications Further Explanation And Examples Memory Roll over Calculations In SHORT mode the elapsed time counter size is 8 bits with a roll over after 256 loops In LONG mode the elapsed time counter size is 16 bits with a roll over after 65 546 loops With input connected to 60Hz 120VAC line a record will be written to memory 240 times per second 4 transitions cycle 60 cycles seconda Logic Beach Incorporated www logicbeach com 8 23 8 Appendices fo N fo 60 Hz AC VOLTAGE INPUT ___ POD SWITCHING THRESHOLD ABOVE IS HI BELOW IS LOW FULL WAVE RECTIFIED INSIDE ISOLATION POD WAVEFORM STORED BY CRAKKER Figure 8 11 Crakker recorded transitions when connected to AC power Case 1 A Crakker operating in the 8 SHORT mode has memory capacity of 57 340 records before memory is overwritten If a single channel is connected to the 60HZ line 4 transitions will occur per cycle hence 4 records will be consumed every cycle Figure 8 11 57 340 records 4 record cycle 14 335 cycles 14 335 cycles 60 cycles sec 238 seconds Hence after 238 seconds 4 minutes memory will start to be overwritten Case 2 An event occurs every 1 second How long until memory is overwritten
80. hen downloaded to a Personal Computer PC and displayed using the supplied Crakker Communications software Figure 1 1 The data display graphically displays the relative and absolute timing of all 16 channels of data to time resolutions as fine as 165uS Logic Beach Incorporated www logicbeach com 1 1 1 Introduction inn Aen AMP ET ITIER P te ilo 7 pam Orte maa w Tir Day 0 Wolii tah 5 i Ian aoe l SUgtgagdgegcglpon urunun E m E ml _ _ _ ___ Figure 1 1 Resulting I O Transition Timing Display from within CCW software The Crakker System consists of the following components Figure 1 2 HANGER INCLUDED WITH BOXES NOT HAVING MOUNTING TABS ISOLATION POD MONITORS ENABLE reconoc STOP monn RESET cme CRAKKER LOGIC TIMING ANALYZER CRAKKER SYSTEM BASE SOFTWARE OUTPUT CABLE I POWER SUPPLY R5 232 CABLE RJ 12 TO DB 9 25 ADAPTER Figure 1 2 Crakker System Components 1 2 Using the Crakker Logic Timing Analyzer Isolation Pod IP 2 The IP 2 Isolation Pods provide the interface between the actual field control signals up to 8 signa
81. ic Beach Crakker Comm for Windows Use the default path or specify an alternate desired drive path and directory and continue Launching CCW Upon successful installation of the CCW program launch CCW with the conventional Windows Start Programs CCW sequence and CCW will launch with the following display There ia mi ample daia loaded Fa Han parma M Figure 4 1 Crakker Communications for Windows Opening Screen CCW Architecture Overview CCW has two main windows the Program View window and the Data View window Details on developing Crakker Run Programs within the Program Window and data display from within the Data View window are in following chapters 1 Program View The Program View window is used during the development of a Run Program which is then transferred to the Crakker s memory where it executes performing the conditional event data collection and alarming function 2 Data View The Data View window is for display of collected control system timing data after it has been downloaded from the Crakker s memory To switch between the two view windows click on the appropriate buttons on the Button Bar or select from the View menu Figure 4 2 RE 4 2 Using the Crakker Logic Timing Analyzer 4 Crakker Communications for Windows Program View Logic Beach Inc Crakker Communications Unti File Program Crakker View Help FE Data View aaen e e ee a eas t Figure
82. ided detailed information on the three components that make up a Crakker Logic Timing Analyzer System the Crakker System Base the Isolation Pod s and CCW the Crakker Communications Software Building on that previously presented material this section describes a typical sequence of steps that would be performed in an application of the Crakker Assess The Problem When a problem with a control system is detected some deductive troubleshooting thought needs to be applied before the Crakker can be brought into action Minimize The Variables In large complex control systems it is imperative that some basic reduction of the playing field be performed prior to applying the Crakker Attempt to identify and limit your studies to the variables sensors switches outputs etc that could be related to the problem For example if a single PLC is controlling material feed conveyors stamping equipment and material scrap removal concentrate your studies on the aspect of the production line that is causing the problem However use caution in limiting the scope of the troubleshooting quest Keep an open mind as many problems can be the result of some fairly intricate inter related stimuli Non judicious limiting of the troubleshooting effort may hide some key indications of the problem and unduly prolong the troubleshooting process Determine A Trigger Condition The best way to trap problems in unattended or intermittent applicati
83. imed Trigger is provided that operates only on Channels A1 and A2 This Trigger can be set to initiate Recording if the Input to Channel A2 transitions too soon or too late after a previously defined transition of Input on Channel A1 e g a Trigger could be set to initiate recording if a pump started short cycling turning ON and OFF faster than once every 60 seconds The Timed Trigger is only available in the 16 Long Record Mode Nine combinations of Timed Trigger are available Details on the Timed Trigger configuration and use are covered in the following section Timed Trigger Details on page 5 13 5 TRIGGER ON ANY CHANGE This Trigger can be set to initiate Recording as soon as any one of the inputs changes The Record Mode must be set to 16 LONG and Timed Trigger cannot be used simultaneous with Trigger on Any Change In the Trigger list box specify Any Change Figure 5 13 6 ALARM FOLLOWS RECORD TRIGGER APPLIES TO ALARM TRIGGERS ONLY Alarm Trigger can be set to follow the Record Triggers If utilized the Alarm output s will be set if any of the Record Triggers are met This function can be used to sound an annunciator or tae warning light in the event that a Trigger condition has been met drawing attention to the Crakker To utilize this trigger condition select Any Rec Trigger for the alarm Figure 5 14 Combinations of State Transition and Timed Trigger conditions can be implemented for more complex Tri
84. is 7 5 Appendices cceceseeeeceeeeseeeeeeeesceeeeeeeesnes 8 1 Appendix A Operational And Error Messages 8 1 Crakker Communications for Windows Errors 8 1 Serial Communication Problems 8 1 Upload Failed 8 2 Crakker System Base Errors 8 2 Appendix B Crakker Technical Specifications 8 3 System Base 04 8 3 Main Power Requirements 8 3 Memory And Clock Backup Power 8 3 Memory Data Storage 8 3 Input Acquisition Window 8 3 Displayie sacs Gap Bee ee eS 8 3 Operating Temperature Range 8 3 Shipping Temperature 8 3 Relative Humidity Operating And Storage 8 3 Shock And Vibration 8 3 Dimensions 8 4 Isolation Pod 8 4 Input Voltage Range 8 4 Inter channel Isolation 8 4 Input Impedance 8 4 Dimensions 8 4 Weight 20 20005 8 4 Appendix C Isolation Pod Circuit Design 8 5 Appendix D Alarm Output Detail 8 7 Output Port pin and function listing follows 8 7 Appendix E Power Connection Details 8 9 Appendix F Changing The Clock Memory Backup Battery aas miris at oe Bed Sei et as Dai 8 11 Appendix G Changing The Crakker Eprom 8 13 The EPROM exchange procedure follows 8 13 Appendix H RS 232 Cable Adapter And Port Specifications 8 15 Appendix l Crakker Communications
85. l Switch Alarm Control Switches 10 on page 2 6 MOMENTARY If the Alarm is configured in the Momentary mode the alarm will turn ON when the Alarm Trigger conditions are met then OFF as soon as the specified Trigger conditions are no longer met For the alarms to function in either mode the Alarm Control switches on the front panel of the Crakker must be in the RUN position Analysis of Run Program Performance After development of a Run Program an inquiry into the expected performance of the program can be performed The Analysis Report is provided to analyze and report to the User a summary of the expected performance from the Run Program currently under development After reviewing the Analysis Report the User may make changes in the Run Program to change or optimize the desired performance then rerun the Analysis Report noting the effects of the changes With the aid of the Analysis feature the Run Program s performance within the Crakker can be evaluated and fine tuned to the application prior to saving and loading into the Crakker s memory To perform an analysis of a Run Program a Crakker must be connected via a serial link to the PC running CCW For an analysis CCW requires timing and memory information that is maintained within the memory of each Crakker System Base This information is utilized in the performance calculations and may vary with different Crakker System Bases and memory configurations Although
86. l of of 0 220us 63DAYS 14 4 SECS 38227 LONG gs l 2 o 348us 101DAYS 22 8 SECS 38227 LONG s 3f 2 o 403us 11 7DAYS 26 4 SECS 38227 SHORT 16 0 0 0 243uS 39 6MINS 62 2mS 38227 SHORT 16 1 0 0 0 243uS 396MINS 62 2mS 38227 LONG 16 1 2 of 0 455us 99DAyYS 29 8 SEC 28670 LONG 16 3 2 0 0 s05us 11DAYS 33 1 SEC 28670 LONG 16 x x 1 0 6e2us 144DAYS 43 4SEC 28670 LONG 16 x x o 1 429us 93DAYS 28 1 SEC 28670 Figure 8 10 Crakker Mode and related Loop Rates 8 22 Using the Crakker Logic Timing Analyzer Memory Utilization Memory Data Storage Concept The Crakker record memory can be envisioned as a continuous loop of memory slots or records As the Crakker is waiting for the pre programmed Trigger to occur it is continually writing records to memory per the previously discussed flow chart When memory fills it commences writing over the oldest records while constantly waiting for the Trigger to occur When a Trigger occurs writing of records to memory continues until the ratio of pre Trigger to post Trigger data specified in the Memory Split section of the Run Program is fulfilled at which time recording stops Memory Consumption The four Record Modes use a different number of bytes of memory for each stored record The SHORT mode uses either two bytes 8 channel or three bytes 16 channel and the LONG mode uses either
87. lder with a small blunt non metallic tool being careful not to puncture the cell or damage any surrounding circuitry Insulated tweezers may assist in pulling the cell out of the holder Slide a new cell P N Panasonic BR 2325 or equivalent into the holder with the positive terminal UP A properly installed cell will seat approximately flush with the holder Logic Beach Incorporated www logicbeach com 8 11 8 Appendices kkkkkkkkkkkkkkkkkkkkk H kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk Caution Use Care In Handling Lithium Cells Currently Manufactured Cells Such As The Br2325 Are Very Stable And Safe Parts However Do Not Tempt Fate Do Not Puncture Short Or Dispose Of In Fire As Explosions Could Occur kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk Reattach the front panel to the circuit board assembly with the 7 small black screws then reinstall the Crakker into its case reconnect the power and turn on the System Power switch After a reset the display should no longer display the Low Voltage Message Perform a two button Reset and Clear of Memory to reinitialize the Crakker and proceed to normal use of the unit 8 12 Using the Crakker Logic Timing Analyzer Appendix G Changing The Crakker Eprom Note Updates to improve performance and or add features are sometimes performed on the Crakker by changing the EPROM to a later version EPROM The EPROM contains the software code which controls the function of the C
88. lection radio button choice and hit OK to print The highlighted selection area will be printed Exporting Data to a CSV File Format Displayed data can be exported to a CSV comma delimited file format from using the menu File Export selection A dialog opens allowing the currently displayed file to be saved as a file with the CSV extension CSV files can be opened within various other applications such as spreadsheets such as Excel Figure 6 6 S Meah E ice tere cre J EY Be EM pes pent Fst Tooke fie doe Het sles oe ee ee eee foe LEN Bry EEFE Bx e A E D r D E E j ESEA Sam OT Sa ee Be Time Sample eat Ch Ai Cha Ch z Chad Chas Chab Ch A 2 Che S27 00 peopl SOUEMOIN i BADR 1 SOLENT 2 Pate OPEN COEN GPE a Wes i o i Oo J o 4 14255 l a 0 o a a 5 14313 0 a 0 o a a E 14370 L aj D D a a 7 iiigh a a o o cl a ce aT 1 J j 1a i i i o i i aor L l l g aj a lE 0 1 D o a o 1215 1165 Sit ari l 1 Oo D n a 19 5 136 4 Sar 1a7GH a i g o a aj 74 5 169 3 Ser 1s i 1 0 o 4 1 184 1781 Sec 1a 0 1 i 6 i f 16 197 9 See uA L l o a a 15 217 3 Sac 1435 g l o E aj a HLA PB tmmepte y Iai i ifs Faith cii lt hi a i Figure 6 6 Excel Display of a CSV Converted Data File 6 7 Using the Crakker Logic Timing Analyzer 6 Captured Data Display and Output Notes 6 8 Using the Crakker Logic Timing Analyzer UTILIZING THE CRAKKER Overview The prior sections of this manual prov
89. ls per Pod and the Crakker System Base Utilization of the POD allows for direct connection to various signal levels within the control system to be monitored through the supplied Insulation Displacement Quick Connect lead pairs Additionally the Pod provides for high voltage isolation between channels and the System Base A multi conductor cable connects the isolated signals from the Pod to the System Base Up to two Pods resulting in a total of 16 channels can be connected to the Crakker System Base Crakker System Base The Crakker System Base contains additional signal conditioning circuitry the microprocessor memory clock and supporting circuitry Before deploying the Crakker in the field factory floor etc a Run Program is developed then uploaded into the Crakker s memory which defines its operation This Run Program is developed by the User using the provided Crakker Communications software then sent to the Crakker via a serial link Contained within this Run Program are a number of operational parameters including the Trigger and Alarm words as well as the User programmed Voltage Thresholds to be used by the Pod Channels for determination of High and Low states In use the Crakker is constantly reading the status of the inputs from the Pods writing them to memory and comparing them to the pre programmed Trigger word When a match occurs the remaining memory is filled and the Crakker stops The User can specify in the
90. m the Big Picture The Crakker Logic and Timing Analyzing System is a versatile test instrument used for troubleshooting and performance analysis of control systems The Crakker was originally developed for use in troubleshooting Programmable Controller Systems PLC s relay logic controls and other ON OFF type industrial control systems Since its conception its applications have expanded to a multitude of monitoring and troubleshooting applications beyond this original target The Crakker is used to monitor up to 16 different signals from a field control system When a User specified combination or transition of these signals called a Trigger occurs the Crakker traps into memory all of the transitions of these 16 inputs for a period of time prior to the Trigger as well as for a period of time after the Trigger The Crakker may be benignly monitoring these signals for milliseconds or months waiting for the specific Trigger prior to trapping the data In a typical application the Crakker could be left on site to monitor a number of On Off signals e g from a PLC I O rack waiting for a particular combination of signal states that meet a User specified Trigger condition This Trigger condition typically would be an event that is indicative of an erroneous or fault condition e g valve 1 valve 2 and pump P1 should never be on at the same time After a Trigger has occurred the trapped data recorded into memory within the Crakker is t
91. n the Download Data button or use the menu selection Crakker Download Data from Crakker A status dialog will open showing the progression of the serial download sequence Upon completion the data will be displayed within the Data View window After download of data into the Data View window if it is desired to save the data to disk use the File Save button or the menu selections Downloaded data is not automatically saved to disk 4 5 Using the Crakker Logic Timing Analyzer 4 Crakker Communications for Windows Upload Run Program After a Run Program has been developed or loaded from file into CCW it can be transferred to the Crakker memory where it executes Clicking on the Upload Run Program button transfers the Run Program currently open within CCW into the Crakker memory Note that the Upload Run Program button is only available i e not grayed out in the Program View window NOTE To prevent inadvertent loss of recorded data within the Crakker it is not possible to upload a new Run Program to the Crakker if the Crakker currently contains recorded data An error dialog will display stating the Crakker memory must be cleared Download the data if desired then clear the Crakker memory using the sequence of simultaneous Stop and Clear front panel button presses Analyze Run Program From within the Program View window in CCW clicking on the Analyze Run Program button results in a overview analysis of the expected performance of
92. nd after a System Reset Lithium Cell Replacement If the above mentioned Low Voltage message is seen transfer any collected data in Crakker memory to a PC and replace the lithium cell or risk the loss of data in memory Refer to Appendix F Changing The Clock Memory Backup Battery on page 8 11 for details on changing the lithium cell Power Failure During Recording In the event that a power failure should occur while the Crakker is in the Record Enabled mode the Crakker will progress through a very high speed shut down routine and save the data currently in memory When power is reapplied to the Crakker after a power failure has occurred the LCD will display a message indicating when the power failure occurred and that data is present in memory Data can be transferred to the PC and displayed as normal 2 2 Using the Crakker Logic Timing Analyzer Crakker Front Panel and Connection Details All of the System Base controls and the Liquid Crystal Display LCD are located on the System Base front panel and include the following Figure 2 1 serak roRT 4 H Tig 3 5 AL STATUS Oi 11 abe MONITORweurs a 6 Dar e ENABLE recorping mm OTRIGGERED RECORDING 7 STOP kecorpinc 12 m O sn Saig e O aan g RESET iar e 9 LOGIC TIMING ANALYZER y 2 10 AA a o RUNE TEST 2 re OFF C
93. nedi por the ingtnactions contained wahin ther FH prog an E Renting Gots E Com man ica one a Ej Guary Cratkar Shabir wt ar Ee E Getting Crekbier Chig Sie pem Odim Sa Help Ej Sending Ren Program ta Cra Aif m fi Cearicading Recorem po B iA al al S p amp s t E Dy Ben Programs Pupan Dapon Firari Moke E Eding a Rus Pregam ji r x Tu Mit F i Singh Aetrd D aih m Maun Poan i hbar kape Beach eei lawn Calg g 7 Keqocard Topics OoOO i y a Oii Chama lampir Qebeunee Tae Reece T eg i lt lt lt lt lt S Figure 8 8 A typical Help Screen launched via a Help Button Logic Beach Incorporated www logicbeach com 8 19 8 Appendices Notes 8 20 Using the Crakker Logic Timing Analyzer Appendix K Memory Utilization Loop Rate Theory Loop Rate Theory While the Crakker is in the Record Enabled mode it is continually executing the repetitive loop outlined in the Loop Flow Chart Figure 8 9 A fundamental understanding of the steps that the Crakker performs each time it executes one of these loops will help the User in grasping the options available during setup of the Crakker wi READ INPUT NX STATUS INCREMENT ELAPSED TIME COUNTER COMPARE INPUT STATUS TO PREVIOUSLY STORED STATUS HAVE INPUTS RECORD INPUT CHANGED STATUS TO MEMORY RESETELAPSED TIME COUNTER TOO LOG WHAT IS RECORD S SHORT A MO
94. nformation contained herein does not purport to cover all details or variations in hardware or software nor to provide for every possible contingency in connection with installation operation and maintenance Features may be described which are not present in all hardware and software systems Logic Beach policy is one of continuous improvement The information in this document is subject to change without notice and should not be construed as a commitment by Logic Beach Logic Beach assumes no obligation of notice to holders of this document with respect to changes subsequently made Logic Beach makes no representation or warranty expressed implied or statutory with respect to and assumes no responsibility for the accuracy completeness sufficiency or usefulness of the information contained herein Original Issue June 1992 Revision Oct 1993 Feb 2 1994 March 25 2002 Logic Beach Incorporated 8363 6F Center Drive LaMesa CA 91942 619 698 3300 www crakker com and www logicbeach com Logic Beach Incorporated www logicbeach com iii Warranty Copyright Receiving Warranty Policy Philosophy We at Logic Beach Incorporated continually strive to provide the best quality product available on the market today We realize that equipment that does not perform properly for whatever reason can be costly both financially as well as through inconvenience and mental anguish For this reason we pride ourselves on producing
95. ng check for the following activity of the Channel A2 Input If a fault condition is seen the Timed Trigger becomes valid and Recording is enabled If no fault condition is seen scanning of inputs continues and Channel A1 input will be monitored for the specified activity to initiate the next timing check Two parameters must be specified for operation of the Timed Trigger the Type and the Timing The Type specifies the sequential pair of Channel A1 and A2 input transitions that must occur for the Timed Trigger to be valid The Time specifies the allowable time in the logic sequence to make the Trigger valid Logic Beach Incorporated www logicbeach com 5 13 5 Programming the Crakker with CCW Tip Ja2 ON too LATE after 41 ON Time 000 00 000 min sec ms Timed Trigger 16 long mode only Figure 5 15 Timed Trigger Type and Timing Selection TYPE SELECTION Nine different types of Timed Trigger operation are available via a list box in the Timed Trigger section An understanding of Timed Triggers may be best developed by example Following are further explanations of a few of the Timed Trigger functions Additionally timing diagrams are shown in Figure 5 16 A2 ON too LATE after A1 ON The trigger condition is met if the time between the ON transition of Channel A1 s input and the ON transition of Channels A2 s input exceeds the specified Trigger TIME This trigger could be used to trap actuation delays in
96. ng the Crakker Logic Timing Analyzer ISOLATION PODS Isolation Pod Overview The Isolation Pods used in the Crakker System provide signal conditioning and high voltage isolation between the Crakker System Base and the signal connection nodes Additionally the Pod provides high voltage isolation between channels as well as initial signal conditioning One Pod can accept up to 8 signal inputs and two Pods can be used with one Crakker providing up to 16 channel capability Each Pod is supplied with eight pairs of connection leads The leads are equipped with Insulation Displacement Quick Connect Clips that are capable of clipping onto leads up to 12 AWG The clips have a sharpened spike integral to the J hook that can be used to pierce through insulation making a fast convenient connection to insulated wire Pods can accept up to 280 VAC or 400 VDC directly The voltage thresholds utilized for the Signal HIGH or LOW decision are User programmed via the CCW software from a choice of 32 values By setting the voltage thresholds properly for each channel low voltage conditions as well as floating voltage effects of leaking currents in Triac type outputs are readily accommodated detected i e in Triac switched outputs a sizable voltage may exist on an unloaded output even though the output is OFF The sensing circuitry for each channel has an input impedance for DC of 220Kohms and for 60hz AC of 120Kohms resulting in a minimum loading on th
97. ns 13 and 14 2 7 Output Alarm Port Connections 15 2 7 ISOLATION PODS cseseereeeeeeeeeeees 3 1 Isolation Pod Overview 3 1 Mounting and Handling 3 1 of Contents Pod Switching Thresholds Vth Setting 3 2 Special Considerations Triacs 3 4 Connecting The Pod To Signal Nodes 3 4 Isolation 2 ow ew a Ee a Bo h 3 4 A Bit Of Theory 08 3 4 Connection Considerations 3 5 Triac or Relay PLC Output Figure 3 4 3 6 Current Sinking Inputs 3 6 Extremely High Voltage Signals 3 8 Contactor Actuation Time 3 8 Trapping Relay Logic first Out Conditions 3 8 Pod To Crakker Interconnection 3 10 Crakker Communications for Windows 4 1 OVENWIEW oep ee a we 4 1 PC Hardware Software Requirements 4 1 CCW Installation 4 1 Launching CCW 4 2 CCW Architecture Overview 4 2 Serial Communications with the Crakker 4 3 Communication Overview 4 3 Serial Port Configuration 4 3 SerialCommands 4 5 Set Crakker Clock Time 4 5 Download Recorded Data 4 5 Upload Run Program 4 6 Analyze Run Program 4 6 Query Crakker Status 4 6 CCW Default File Paths 4 7 Programming the Crakker with CCW 5 1 Overview 00 2 00002 ae 5 1 Run Program Configuration
98. nsiderations in timing display 6 5 Loop Rate theory 8 21 Low Voltage Indication 2 2 Maximum Recording Time Before and After the Trigger 5 17 Maximum Recording Window 5 17 Memory Saved before Trigger 5 2 Memory utilization theory 8 21 Monitor Button 2 4 N No Run Program Loaded 8 2 0 Output Cable 1 2 Output Relays 8 7 Overrun Error 8 2 P Panning timing display 6 4 Parity Error 8 2 Personal Computer 4 1 Pod See Isolation Pod Position Indicator 6 4 Power connections System Base 8 9 Power Failure 2 2 Power Jack 2 1 Power requirements 8 3 Power Supply 1 2 Press Status To Display Ch Names 2 4 Print a range of pages 6 6 Print a selected page 6 6 Print a selected range of data 6 7 Print complete data file 6 6 Program Description 5 2 Program View 4 2 Menu Selection 5 1 Q Query Crakker Status 4 6 R Receiving Inspection Reshipment v RECORD ENABLED 2 5 Record Mode 8 and 16 Short and Long 5 3 8 vs 16 Mode Explained 5 3 associated Loop Rates 8 22 available Triggering 5 10 Selection Flow Chart 5 4 Selection flow chart 5 3 Short vs Long Mode 5 3 Short vs Long more theory 5 3 Record Modes 5 2 Record Trigger 5 9 Recording Enabled mode 5 2 Relay Use with Alarm Triggers 5 10 Relay Operation 5 16 Relays 8 7 RESET AGAIN TO CLEAR MEMORY 2 6 Reset Clear Memory button 2 5 RPS 1 2 2 RS 232 4 1 4 3 RS 232 Adapters RS 232 Port pinout 8 15 RS 2
99. ny other unique applications Pod To Crakker Interconnection Isolation Pods are connected to the Crakker System Base via the multi conductor cable and its DB 15 type connector If only using one Pod connect to Port A on the Crakker to allow for the fastest scan rates Tighten the connector retaining screws securely to insure a good electrical connection 3 10 Using the Crakker Logic Timing Analyzer 4 Crakker Communications for Windows CRAKKER COMMUNICATIONS FOR WINDOWS Overview The Crakker Communications for Windows CCW software is an integral component of the Crakker Logic Timing Analyzer system CCW performs four major functions during normal use of the Crakker e Serial Communications Serial communication is fully implemented allowing the Crakker to communicate with the Personal Computer PC via a provided RS 232 serial cable Communication is employed in programming the Crakker from the PC and in the transfer of collected data from the Crakker memory to the PC e Crakker Programming The Crakker performs its Triggered data collection and Alarming functions per the instructions contained within a Run Program This Run Program is developed on the PC using the CCW program then transferred to the Crakker s memory where it executes e Display of Recorded Data Data collected by the Crakker in a Recording session is downloaded and saved to a file on the PC then graphically displayed on the PC for inter channel and a
100. of equipment or multiple events over time Testing new code involving high speed control logic Detecting suspected low voltage conditions on control I O nodes Power Supplies etc 1 4 Using the Crakker Logic Timing Analyzer Features A summary of major features incorporated into every Crakker system follows Each feature is addressed in further detail in later chapters Extremely simple set up and use Portable self contained ready for stand alone on site use Eight or sixteen channel recording capability Direct connection isolated to signals ranging from TTL to 240 VAC 32 User Programmable Signal Logic Voltage Thresholds Input latching Loop Rates of 165uS 8 channels Two programmable alarms relay contact output State transition time based or any change Trigger conditions for Data Recording State and or transition based Trigger conditions for Alarm output Provided Crakker Communication software with powerful zooming timing measurement and output capabilities Independent battery back up for memory retention Powered by low current low voltage AC DC or external battery pack Battery backed up Real Time Clock with 24 Hr Time and Date Logic Beach Incorporated www logicbeach com 1 5 1 Introduction Notes 1 6 Using the Crakker Logic Timing Analyzer CRAKKER SYSTEM BASE System Base Overview The Crakker System Base contains the controlling microprocessor memory for storing collected data
101. ons is by using the Crakker s powerful Triggering capabilities When the Crakker sees the Trigger condition it will trap the sequence of events surrounding the fault for review on the PC Triggers can come from a number of sources System Signal An ideal Crakker Trigger situation exists where a known combination of I O occurs on the PLC just before during or after a fault condition This combination can be programmed into the conventional Record and Alarm Triggers of the Crakker Run Program e g maybe two outputs should never be ON at the same time Logic Beach Incorporated www logicbeach com 7 1 7 Utilizing The Crakker System Alarm The Control system may already have an alarm output that asserts upon a problem for example an emergency shutdown signal E Stop overload warning horn etc that could be used by the Crakker to Trigger External Trigger In some applications an external Trigger sensor or device may need to be added to the Crakker system to detect a fault condition When the external Trigger device sees a fault condition it would then provide a Trigger signal to the Crakker Pod trapping data into memory For example a low voltage moisture detection switch may be employed under a liquid filling line if any containers are over tfilled the moisture detector would provide a Trigger signal to the Crakker trapping data in Crakker memory Manual Trigger In many operator attended cases a fault condition may be v
102. or editing on the Trigger Configuration screen In the most powerful Record Mode 76 Long 3 Record Triggers 16 channels 2 Alarm Triggers 16 channels and the Timed Trigger can be utilized In contrast in the fastest but most limited Record Mode 8 Short only one Record Trigger is allowed 8 channel In Record Modes with multiple Record Triggers allowed e g 8 Long and 16 Long the Triggers for the Record function are logically OR d together For example if a User sets up all three Record Triggers 8 LONG or 16 LONG mode in a Run Program loads the Run Program into the Crakker then Enables Recording the Crakker will Trigger if Record Trigger 1 OR Trigger 2 OR Trigger 3 occurs In the 16 Long Record Mode a Timed Trigger is also allowed as a fourth possible Record Trigger If it is setup and enabled the Timed Trigger is logically OR ed with the other utilized Record Triggers KJ buses j Channel Description Debounce W Thresh Record Meni Aeara te ia Trigger 3 apero P e e e m ABS Headejectr fo I 25 f DontCare Dont Care High De AB feta QP 25 ef DontCare Dont Care Don t Care i Ad as o_o aj 25 E 25 Don t Care paces Beate _ oe Figure 5 10 Record Trigger Configuration Section of Program View Alarm Triggers Quite similar to the Record Triggers two Alarm Triggers Figure 5 11 are also provided which control two output relays built into the Crakker These Alarm Triggers are availa
103. output cable multi conductor cable extending from the bottom of the box to the mating connector on the Crakker System Base If only one Pod is used connect its cable to Port A Insure that the connector retaining screws are securely tightened Power up the control system under test and watch for any erratic operation indicating operational interference from the Pod circuitry The Crakker Monitor button can be pressed to observe the cycling operation of the control system signal nodes Alarm Output Connection If Alarms are utilized pre wire the Alarm pigtail assembly refer to Appendix D to the low voltage alarm devices then plug the pigtail into the Alarm Output connector on the Crakker System Base The Alarm functions can be tested by switching the Manual Alarm switches to the momentary TEST position After testing be sure to leave the Alarm Switches in the RUN position to allow the Crakker to control them per the loaded Run Program Alarm Trigger logic Enable Crakker Recording After checking that the Crakker and Pod have been correctly installed and connected press the Enable button and the Crakker will roll through a number of displays then proceed to start reading the inputs waiting for the pre programmed Trigger condition s If the Crakker detects any errors they will be displayed on the LCD at this time For this reason it is a good practice to watch the LCD after pressing Enable until the WA TING message is displayed indica
104. ownloading recorded data 4 5 E Edge Trigger logic 5 11 Elapsed Time axis 6 3 Enable Recording 2 5 disallowed if data in memory 2 5 error message 4 4 Error Messages 8 1 On System Base LCD Comm Error 8 2 Comm Timeout 8 2 Data In Memory 8 2 Framing Error 8 2 No Run Program Loaded 8 2 Overrun Error 8 2 Parity Error 8 2 Test Mode 8 2 Xmit Error 8 2 Exporting recorded data to CSV format 6 7 F First out Detection 8 29 Framing Error 8 2 H Hanger 1 2 hanger 2 1 High and Low Trigger logic 5 11 Icon 5 1 Input voltage range 8 3 Isolation Pod 1 2 Applications Trapping Relay Logic first Out 3 8 applications analyzing Contactor Actuation Time 3 8 Circuit Design 8 5 Connection Considerations 3 5 connection leads J hooks 3 1 connection to Current Sinking Inputs 3 6 connection to extremely High Voltage Signals 3 8 considerations for use 3 4 Equivalent Input circuit 3 5 In a typical usage application 7 3 Input circuit design 3 4 Isolation 3 4 Mounting and Handling 3 1 Overview 1 3 3 1 Pod To Crakker Interconnection 3 10 settings for use with Triacs 3 4 Index 2 Theory 3 4 Triac or Relay PLC Output connections 3 6 Vth Setting 3 2 Vth setting table 3 3 L LCD See Display leads 3 1 lithium battery 2 3 Lithium Cell Replacement 2 2 lithium cell 2 2 8 3 Lithium cell changing 8 11 Logic Beach Incorporated Contact Information iii Loop Rate 5 3 5 17 co
105. plied via the provided AC adapter or other low voltage source to the power jack the System Power switch turned ON and a READY or DATA RECORDED message displayed in the LCD Similarly the PC must be booted up running the CCW program Serial Port Configuration A serial port and baud rate must be selected after installation of CCW for use in communication with the Crakker This selection is done within an Options dialog which is opened by selecting File Options from the menu Select a Serial Port number then a baud rate Typically the baud rate setting should be left at 19 2K for fastest serial communications in all but extremely electrically noisy environments or long cable runs 4 3 Using the Crakker Logic Timing Analyzer 4 Crakker Communications for Windows Options 2 xi General Trace Colors m Serial Pot r Baud Rate com x 1m O2400 3600 19200 Cancel Help Figure 4 3 Options dialog for Default Path and Serial Comm setup A quick test of the serial link can be performed via the Query Status button or menu choice Crakker Query Crakker Status This command queries the connected Crakker for a current system status and returns a dialog as shown in Figure 4 4 Crakker Status 2 x Filename Turret2 run m Timed Trigger Type 0 Timed Trigger Disabled Description Turet Punch Time Joon 00 000 min sec ms J machine 18 A
106. pon release of the mouse button a green vertical band will display The time encompassed by the band will be displayed in the Delta Cursor box To measure delta times at higher resolutions the timing display can be zoomed see section on Zoom controls following to a desirable level and then the highlighting of the desired time slice can be done As the cursor is dragged to the edge of the Data Window the data will start scrolling allowing access to timing data beyond the current view Tip To scroll controllably through a timing sequence that extends beyond a single monitor screen display width while defining a Delta Time mark the starting point of the desired Delta Time slice and while holding the mouse button down use the left and right arrow keys and the PageUp and PageDown keys to move through the timing display When the desired end point of the Delta measurement is found release the mouse key and the green time slice band will display Display Timing Considerations In the review of data it is important to keep in mind the net time resolution that can be achieved using the Crakker system and its ultimate ramifications during the display of the collected data Time Resolution Loop Rate The ultimate absolute time resolution achieved by the Crakker during a Recording session is specified as the Loop Rate The Loop Rate depends on the Record Mode quantity and type of Triggers employed in the Run Program The Loop Rate used
107. ponse 3 6 Using the Crakker Logic Timing Analyzer VAC HOT SUPPLY PLC PROXIMITY SWITCH AC INPUT im NEUTRAL 5 3 o a a u gt t ISOLATION POD p2 ISOLATION POD T a Figure 3 5 Pod Connection to a PLC Digital Input 24 VAC HOT SUPPLY T mt I 0O PLC PROXIMITY SWITCH AC INPUT a i J NEUTRAL 0 3 2 a a ul lo ISOLATION POD 4 IP 2 ISOLATION POD Kp Figure 3 6 Pod Connection to a PLC Input Alternate Method Figure 3 6 shows an alternative connection for monitoring a similar type digital input With this type connection when the Prox Switch is open a logic HIGH will be recorded and when the switch is closed a logic LOW will be recorded by the Crakker The advantage of this connection is that the Pod inputs are driven high and low solidly resulting in maximum speed However with this connection configuration when the Prox Switch is open a small current can still flow around the switch to the PLC Input Terminal via the Pod detection circuitry For a control with very sensitive input circuitry within the Input Terminal this current may be sufficient to effect a High condition on the PLC input when in fact the Prox Switch is open With a 24VDC supply used as shown the current that will flow around the open Prox Switch via the Pod Input circuitry to the PLC Input will be less than
108. r A detailed explanation of the memory management scheme is provided in Appendix K Memory Utilization Loop Rate Theory on page 8 21 The Memory Saved Before Trigger percentage value determines how the total Crakker data memory is divided into Pre Trigger and Post Trigger data When the Trigger occurs the Crakker will continue to write post Trigger data to memory until the specified percentage is met Upon fill of memory the Crakker then displays RECORD ENABLED lt FINISHED gt on its LCD and stops The percentages on the menu are approximate and specify the portion of the total data memory that is allocated to data storage of transitions PRIOR to the Trigger i e pre Trigger data Typically the events that occur just prior to a Trigger condition are of utmost interest in the troubleshooting sequence NOTE If a Trigger occurs before the specified pre Trigger memory percentage is filled the Memory specification obviously will not be met nowever the amount of pre Trigger data that was collected will be retained Recording Mode The Crakker can operate in a number of different Record Modes Different modes allow for varying operation and capability Mode selection will vary depending on a number of setup parameters such as number of channels types and quantity of Triggers and timing Recording Mode 16 Long 7 8 Short 8 Long 16 Short Ie Long 3 Alarm O La Mie mentary resh Re Figure
109. rakker In the event that an update is initiated by Logic Beach Inc the User will be sent a package containing the necessary components At this time and only at this time will the customer be requested to follow the following procedure which outlines the steps required to exchange EPROMs kkkkkkkkkkkkkkkkkkkk H kkkkkkkkkkkkkkkkkkkkkkkkkkkkk Caution The Eprom Chip Is Especially Sensitive To Damage From Static Discharge When Out Of Its Socket Discharge Body Static Before Working With The Crakker Eprom By Touching A Grounded Surface Before Starting This Procedure kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk FRONT PANEL j SELF TEST SWITCH BACK SIDE CIRCUIT BOARD ALL SWITCHES TO BE LEFT OFF ASSEMBLY E S CONTACT FACTORY FOR DETAILS DISPLAY o o o FRONT PANEL REMOVAL SIDE VIEW i O EPROM NOTE NOTCH ORIENTATION LITHIUM CELL oO A O CIRCUIT BOARD ASSEMBLY FRONT PANEL REMOVED Figure 8 5 EPROM location within System Base The EPROM exchange procedure follows Transfer any valuable data currently stored in Crakker memory before starting this update procedure Disconnect the Crakker Power Supply and turn OFF the main system power switch remove the three Phillips head screws identified with blue rings and tilt the top of the front panel and circuit board assembly partially out of the box Put a pencil or some other spacer between the top of the box the end toward
110. rakker power is ON Insure that a message is displayed in the Crakker LCD which indicates that power is on Check all power connections Tip If communication problems persist after checking all of the above reset the Crakker and the computer to clear possible communications errors and to initialize the communications port again Logic Beach Incorporated www logicbeach com 8 1 8 Appendices Upload Failed Unable to Send Run Program to Crakker Please clear Crakker memory before sending a new Run Program The Crakker memory must be cleared before a new RUN program can be loaded Transfer any valuable collected data to the PC then clear memory and Upload the Run Program again Crakker System Base Errors Various error messages can be displayed on the Crakker System Base LCD Their descriptions and remedies follow Test Mode Indicates that one or more of the four Crakker internal self test switches are ON These switches are located inside the Crakker System base on the back of the top PCB refer to Appendix G These switches are used for production testing and they should all be left OFF during normal use of the Crakker Framing Error Indicates improper timing during RS 232 communication Will commonly be displayed when PC is powered down and the RS 232 cable is still connected to the Crakker as garbage can be transmitted in this uncontrolled state Reset the Crakker to clear the display and if desired retry communication
111. re listed as High or Low Figure 5 13 3 TRANSITIONAL EDGE TRIGGER LOGIC Input Channel Transitions refer to an input to the Crakker that changes from ON to OFF High to Low or OFF to ON Low to High relative to the last scan of that input Transitions from OFF to ON are referred to as Rising Edge transitions and ON to OFF are referred to as Falling Edge transitions Figure 5 12 An example of a Transitional Trigger is shown in Figure 5 10 Trigger 2 Trigger when the Rotation Motor is OFF Low and Index Detent actuates transitions from Low to High In the Trigger list box Transitional Edge Triggers are listed as Rising Edge or Falling Edge Figure 5 13 Note that in this example by using a Transitional Trigger the Index Detent may already be ON when the Crakker is ENABLED and the Crakker does not Trigger Because a Transitional Trigger is used the Crakker does not Trigger until the Index Detent turns ON in this case the Index Detent must turn OFF then turn back ON In contrast if a State Trigger Logic Beach Incorporated www logicbeach com 5 11 5 Programming the Crakker with CCW had been used for the Index Detent the Crakker would have Triggered immediately upon ENABLING RECORDING as the Index Detent level was already steady state ON ON RISING EDGE orh SIGNAL FALLING EDGE SIGNAL Si Figure 5 12 Transitional or Edge Triggers 4 TIMED TRIGGER LOGIC A special T
112. s During the use of the Crakker System Base and the associated Crakker Communications software certain error conditions can result In many of these cases error messages will be displayed on the Crakker LCD or on the PC screen Most of the errors are self explanatory with obvious remedies that can be implemented by the User on site The following is a summary of errors and where applicable possible solutions The listing is divided into two groups Crakker Communications Errors and Crakker System Base Errors Crakker Communications for Windows Errors Serial Communication Problems The Crakker and PC can t communicate via the connected serial link for Status Uploads Downloads etc Bad Serial Cable or Adapter Connection Check all cabling and adapters NOTE Utilize only Logic Beach adapters that directly connect into the serial port on your PC Although a multitude of gender and DB style adapters are manufactured by other companies many are incompatible and will prevent successful communication or could cause damage between the Crakker and the PC Please contact Logic Beach Technical Support for alternate cable adapter assistance Baud Rate Too Fast In noisy environments or with very long cable runs e g 10 s of feet it may be necessary to run at slower Baud Rates Change the Baud Rate setting from within CCW the Crakker will automatically adapt accordingly POWER LOSS DURING DATA TRANSMISSION Check that the C
113. se in providing external power to the Crakker and is equipped with a mating connector plug Alternate Power Sources Alternatively the Crakker can be powered from any clean voltage source that is capable of supplying 150 mA and is regulated within the voltage ranges of 8 16VDC 10 16VAC The Crakker power supply is equipped with a full wave bridge hence polarity is not critical in the connection of DC supplies to the Crakker External Power Jack Refer to Appendix E for a detailed pin out of the External Power Connector Additional mating connectors with pigtail are available from Logic Beach RPS 1 For remote site applications or applications where 120Vac is not readily available the Crakker can be powered from the Logic Beach Inc Portable Power Supply model RPS 1 The RPS 1 will provide sufficient power to run the Crakker in the Recording Enabled mode for approximately 24 hours before recharging is required Memory and RTC Power The data memory SRAM and the Real Time Clock integral to the System Base are powered by a 3 volt lithium cell when the Crakker main power switch is OFF This insures that the time and date and data in memory is maintained during times when power is not connected to the Crakker Low Voltage Indication When the lithium cell voltage drops below approximately 2 6Vdc a sensing circuit in the Crakker detects this and displays a Low Voltage indication on the Crakker display during Status upon Power Up a
114. shorter due to the recording of Input Transitions however this value can be used as a relative figure of merit for comparison between different Run Program configurations Maximum Recording Time Before and After the Trigger Indicates the effect of the selected Memory Split setting within the Record Program displayed on a time basis Logic Beach Incorporated www logicbeach com 5 17 5 Programming the Crakker with CCW Notes 5 18 Using the Crakker Logic Timing Analyzer 6 Captured Data Display and Output CAPTURED DATA DISPLAY AND OUTPUT Overview 6 1 In the Data Display View a file is loaded into CCW either directly from the Crakker memory or opened from file using the File Open Menu and viewed Figure 6 1 In the Data Window logic comparisons between channels can be performed absolute and relative timing measured and fault conditions identified A flexible zooming and panning function allows for detailed analysis of timing data Channel s display order and colors can be changed Display Calibration Status Timing Information Position Indicator Run Program Name Elapsed f Daha Gumos f EHEN Time Axis KEIT Sar TAJNE Gee LMES Sar IRTE San TEIKA Sun Data Window Status Bar Channel Names Trigger Marker Ta Rate Indication Delta Time Slice Figure 6 1 Display of Recorded Timing Data Data View Using the Crakker Logic Timing Analyzer 6 Captured Data Display and Output Display View
115. sitions from a positive voltage to zero and back to the positive voltage without crossing under the zero at twice the normal frequency Figure 5 7 The Debounce function can assist in overcoming this misleading AC input problem by filtering the AC voltage into an ON and OFF state which corresponds to the presence or absence of AC at the monitored node Figure 5 8 illustrates the monitoring of an AC node with two channels one with and one without the Debounce enabled For typical 50 60 hz AC signals a Debounce value of 30 mS will provide sufficient filtering assuming that the Vth level is set to approximately 1 2 to 3 4 of the AC rms ON state value Use of Debounce settings other than 0 will result in time skew delay in time of the transitions This is illustrated Figure 5 8 Channel A1 has no Debounce enabled and accurately portrays the timing of the first positive voltage detected on the input Channel A2 with 30mS of Debounce enabled filters out the 60Hz cycles into one continuous ON period however note that its initial turn on time is delayed by approximately 60mS Although the Debounce setting is 30mS the combined effects of the duty cycle of the AC waveform above the Vth threshold see Vth Voltage Threshold on page 5 8 serves to impact the effective skew In this example a Vth of 10V was used for both channels and the actual node voltage being measured is 13Vac rms With the 10V threshold in a half period 8 33mS of the 60Hz
116. smbly Line F Crakker Date 0A 0 02 Crakker Time fi 4 53 20 Memory Split _ Power Fail Status ok Memory saved before trigger Battery Status ok Data Status No data in memory Recording Stopped No data in memory Recording Mode Channel Configuration 8 Long Figure 4 4 Query Crakker Status response dialog At the start of any communication with the Crakker a series of short commands are exchanged between the Crakker and the PC If any problems exist in the serial link or configuration a communication error message will be displayed on the PC In the event that an error message is displayed a quick check of the following points will remedy the problem in most cases Correct Port Specified Check that the correct PC port is being used Change from within the Options dialog 4 4 Using the Crakker Logic Timing Analyzer 4 Crakker Communications for Windows Note NOTE Crakker Powered Up Insure that the Crakker is powered up and is displaying a steady Ready or Data Recorded message in its display Serial communications cannot operate while the Crakker is in the Record Enabled mode if displaying Record Enabled press the Crakker front panel Stop button Serial Cable Connections Correct Insure that the RS 232 cable is seated securely in the front panel Serial Port of the Crakker and plugged securely through the DB 9 25 adapter into the PC serial port DB 9 to D
117. ternal series 4 3K resistor Recording Status TTL level output current limited by internal 4 3K resistor Logic follows the front panel Triggered Recording indicator HIGH active RPS 1 Control 1 Same as pin 2 however the logic follows Alarm 1 HIGH Alarm ON This output can be used to control one of the optional RPS 1 power supply outputs which in turn can actuate an audible alarm or other function see RPS 1 in Appendix L RPS 1 Control 2 Same as pin 3 however the logic follows Alarm 2 Logic Beach Incorporated www logicbeach com 8 7 8 Appendices Upon Alarm 1 turning ON Pin 5 is shorted to Pin 6 via an internal relay The maximum voltage to be switched by these outputs is 30 VDC VAC and the maximum current is 1A See Pin 5 above Upon Alarm 2 turning ON Pin 7 is shorted to Pin 8 via an internal relay The maximum voltage to be switched by these outputs is 30 VDC VAC and the maximum current is 1A See Pin 7 above Connects to Crakker circuit ground This is the ground reference for the TTL level outputs pins 2 3 amp 4 Note Upon power up and or system Reset the Alarm Outputs can turn on briefly as the microprocessor gains control of the system If a short Alarm state on the outputs is a problem insure that the front panel Alarm switches are both in the center OFF position before performing a Reset or cycling the power on the Crakker 8 8 Using the Crakker Logic Timing Analyzer Appendix E Power Connection
118. the actuation of a part removal mechanism after a flawed part has been detected on a high speed conveyor line Additionally this function could be used to trap overly long periodic loop rates in a time critical PLC program Too much delay between a PLC input asserting and a corresponding output asserting can be detected A2 OFF too EARLY after A1 ON Trigger condition is met if the time between Channel A1 s input transition from OFF to ON and the following Channel A2 s transition from ON to OFF is shorter than the Time specification At the packaging end of a production line a glue applicator is to apply glue to a moving product case for a stroke that lasts 800mS after detection of the presence of the case This trigger could be used to trap short cycles of glue application Note that for some applications both channel A1 and A2 can be connected to the same control node In this way a too short or too long pulse could be detected on a control line by using the A2 ON too Late after A1 ON pulse too long or the A2 OFF too Early after A1 ON pulse too short triggers TIME SELECTION Within this list box specify the time to be used in the Timed Trigger Format is indicated in Minutes Seconds and Milliseconds 5 14 Using the Crakker Logic Timing Analyzer 1 A2 ON too LATE after A1 ON TRIGGER if T gt Timed Trigger Value 2 A2 OFF too LATE after A1 OFF TRIGGER if T gt Timed Trigger Value 3 A2 ON too LATE after
119. the currently displayed Zoom level Note Be aware that large files printed at higher Zoom levels can result in 100 s of printed sheets Print a Range of Pages Prior to printing display the data at the Zoom level desired on the printout To print just a range of pages of the data file select the Print Range Pages from radio button and specify the pages desired in the appropriate text boxes Mirm bee o Tisi Deis pine Mea Taa HFP Ladai fe there LPH Cameri I Finis Fret rarga Copas E Murego o a r Pages jm je ite i Ir on toc Figure 6 5 Windows Print dialog Print a Selected Page To print just a single page from within CCW Zoom into the desired printout level identify the time range on the Time Axis then select File Print Preview menu choice From within the Print Preview 6 6 Using the Crakker Logic Timing Analyzer 6 Captured Data Display and Output dialog step ahead until the desired data page is displayed observe the Time Axis to locate your position in the file as data may or may not be visible in the Print Preview dialog When the desired data is displayed click on the Printer button and that page will be sent to the printer Print a Selected Range of Data A specific range of data that may span one or more pages can be printed by highlighting then printing Using the Delta Cursor highlight the range of data to be printed Then from the Printer dialog select the Print Range Se
120. ting a proper initiation of the Enabling of Recording 7 4 Using the Crakker Logic Timing Analyzer Collected Data Download The Crakker System Base should be checked regularly A lit green light on the front panel indicates that the Record Trigger has been met and data is stored or currently being stored in memory When the complete Crakker memory has been filled the LCD will display DATA RECORDED lt FINISHED gt After Triggering and fill of memory if Post Trigger data is desired the Crakker System Base can be powered OFF memory will be retained and disconnected from the Pods and Alarm devices if desired The Crakker System Base can then be transported to the PC location and powered up The collected data should then be transferred from the Crakker to a REC file within the PC using the serial cable and the Download Data from Crakker menu or button in the Data View window Data Display and Analysis Tip From within the Data View window use the zoom pan and other powerful commands to review the data looking for the control system problem Don t forget that a simple way to jump to the Trigger within a displayed data file is to use the View Scroll to Trigger menu or the F4 function key This function works at any zoom level Logic Beach Incorporated www logicbeach com 7 5 7 Utilizing The Crakker Notes 7 6 Using the Crakker Logic Timing Analyzer APPENDICES Appendix A Operational And Error Message
121. tly under the Zoom Pan controls Menu selections or Function Keys can be used to jump quickly between the maximum zoom display level View Maximum Zoom and minimum zoom display level View Minimum Zoom Position Indicator Due to limits within the Windows environment the full range of very large files can not be completely accessed start to finish via the slider on the bottom Scroll Bar The Position Indicator represents the full data file The left edge being the start and the right edge being the end of the file At low levels of timing resolution i e zoomed out the scroll bar at the bottom of the screen allows movement through the complete file Zooming in to a finer timing detail will eventually result in a limitation in the Scroll Bar range to less than the full file The Position Indicator shows this condition when it displays with a blue band indicating the data within the full file that can now be accessed by the Scroll Bar slider at the bottom of the screen A red vertical line in the Position Indicator indicates the location of the trigger within the file Note that at any time the view can be centered on the Trigger point by selecting View Scroll to Trigger from the Menu Bar Pan Left Pan Right Panning control buttons move the scrollable range the blue band left and right through the data file moving stepping the region that is accessible with the Scroll Bar about within the full data file Alternatively use t
122. veloped and saved to disk and new Run Programs can be built by editing existing Run Programs and saving them with a new name Use the conventional Windows File Open menu to open an existing Run Program or New to start with a blank program After development of a Run Program the program can be saved to disk view the Save button on the toolbar or the File Save As or Save menu selections Run Program Development In the development of the Run Program various text fields and logical condition statements are completed Upon completion the program is saved and or uploaded to the Crakker memory for execution Following is a discussion of the various parameters to be specified by the User in development of a Run Program Program Description Three lines of 16 characters each are provided for entry of a short description of the current Run Program under development This description will be saved with the Run Program During a Status display from the Crakker front panel this description is displayed on the LCD immediately after the name of the Run Program currently in Crakker memory This description can then serve as a reminder of the function of the associated Run Program Memory Saved Before Trigger The Crakker allocates a certain block of its internal memory for storage of data In the Recording Enabled mode the Crakker is constantly writing then over writing data to this block of memory while it is waiting for the Record Trigger to occu
123. voltage drops below 78 Volts Details on the programming of this Vth threshold are covered in Vth Voltage Threshold on page 5 8 3 2 Using the Crakker Logic Timing Analyzer Programmed Vth Level Approximate Approximate Vdc OFF to On Voltage Vdc ON to OFF Voltage Vdc 2 0 2 0 1 3 2 5 2 5 1 7 3 0 3 0 2 2 4 0 4 0 3 0 5 0 5 0 4 0 6 0 6 1 4 6 8 0 8 1 6 0 10 0 10 0 6 9 15 15 10 20 19 13 25 25 19 30 30 21 40 40 31 50 50 40 60 58 48 70 70 59 80 82 70 90 90 78 100 100 87 110 112 101 120 122 111 130 130 118 140 139 127 150 150 140 160 158 147 170 169 159 180 182 174 190 190 182 200 198 190 210 212 205 Figure 3 2 Isolation Pod Voltage Threshold Switching Values approximate Prior to the programming of the Vth levels it may be prudent to check the On Off voltage levels of the nodes to be monitored during normal operation using a voltmeter to insure The voltage levels are within the maximum withstand range of the IP 2 Isolation Pod channels For future reference during the Vth programming process from within CCW Logic Beach Incorporated www logicbeach com 3 3 3 ISOLATION PODS Special Considerations Triacs In many control systems AC signals are controlled with a solid state switch or Triac or SCR for DC These switches unlike relays or mechanical switches commonly have some leak

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