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Table of Contents
Summary of Contents for ScanMeg SIM-P
- Page 1 ScanMeg Inc. Module SIM‐P USER MANUAL Version 1.3 October 2014 ...
- Page 2 ScanMeg Inc. Module SIM‐P User Manual 2 Version 1.3 ...
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Page 3: Table Of Contents
ScanMeg Inc. Module SIM‐P Introduction .......................... 5 Type P sensor Head ........................ 6 SIM‐P module .......................... 7 SIM‐P module connections ...................... 8 Power supply .................................... 8 Head connection .................................. 8 Photocell output .................................. 9 Serial Link .................................... 9 Analog output: 4‐20mA ................................ 10 LED description .......................... 11 SIM‐P module ................................... 11 Emitter head .................................... 13 Receiver head ................................... 14 Display and membrane keypads .................... 15 ... - Page 4 ScanMeg Inc. Module SIM‐P Actual readout (dimension and position) .......................... 34 User Manual 4 Version 1.3 ...
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Page 5: Introduction
ScanMeg Inc. Module SIM‐P Introduction The use of a SIM‐P module changes a simple type P photocell that has a detection feature into a complete scanner with different outputs, and also maintains all the features of a photocell. It is like getting a sophisticated photocell and a high‐tech scanner at the same time. The type P sensor head is an area photocell made up of an emitter and receiver. The sensor detects objects as small as 0.1 inch (2.5mm). The emitter and the receiver can be mounted up to 100 feet (30m) apart. The SIM‐P module has multiple outputs: a PNP contact, a NPN contact, an RS‐232 serial communication port, an RS‐422 serial communication port and two analog 4‐20mA outputs. ... -
Page 6: Type P Sensor Head
ScanMeg Inc. Module SIM‐P Type P sensor Head The P photocell head is a sealed enclosure. The head is rated NEMA 4 or IP66.. Each head has a quick‐ disconnect connector with four contacts. Two series of LEDs indicate the state of each cell present in the sensor. The component of the emitter and the receiver are as follows: LED Power Bracket LED Presence LED Power LED State for each cell LED Synchro Quick Disconnect Bracket connector Receiver Quick Disconnect connector ... -
Page 7: Sim-P Module
SIM-P module The SIM‐P module is the controller for the Type P sensor heads. All parameter setups and configurations are made with the SIM‐P module. The emitter and the receiver are connected directly to the terminals on this unit. Using the display and the membrane keypad, one can view and change setups or parameters. All of these values are kept in a flash memory. At power up, all previous ... -
Page 8: Sim-P Module Connections
ScanMeg Inc. Module SIM‐P SIM-P module connections Power supply Another connection is the power. The terminals are located on the bottom right of the module. The Power word is visibly written in front of the terminal. The red and the black color indicate respectively positive (24Voltsdc) and negative terminals (0Vdc). A 24Vdc Power supply is required for the module and is supplied by the customer. This supply is directly connected to the SIM‐P. The 15Vdc supply needed for the emitter and receiver is made internally by the SIM‐P module. ... -
Page 9: Photocell Output
ScanMeg Inc. Module SIM‐P The electrical connections are very simple to make. One can make them without the need of any drawing. On each terminal, the color of each wire is identified. Just connect the wires at the position corresponding to their color. All wires from the emitter have to be connected to either terminal block location; then connect the receiver’s wires on the unused terminal. Visually, the connections will be as shown on the right (bottom of the previous page). Photocell output When a presence is detected according to the setup (parameters), a NPN and a PNP output are available. Both are available at the same time. The terminals for the connection are located on the bottom of the module on the right side and are clearly identified. Each of them has two terminals: OUT and COM. The OUT terminal is the switching output and the COM is the common reference for the PNP or NPN. Serial Link Two serial links are available. One is an RS‐232 and the other is an RS‐422 link. Only one can be used to transmit the dimension and the position. Nothing will be transmitted on the other serial link. The selection of the active serial link is made with the parameter of the SIM module and can be done at any moment. Please note that the RS‐422 connection and the RS‐232 connection are not located on the same terminal block. The RS‐232 terminal block is located on the bottom center of the ... -
Page 10: Analog Output: 4-20Ma
ScanMeg Inc. Module SIM‐P Analog output: 4‐20mA The analog terminals are located on the top left side of the module. The first analog 4‐20 mA output shows the dimension of the object inside the field of view. The second analog output shows the position of the object starting from the connector side of the sensor head. User Manual 10 Version 1.3 ... -
Page 11: Led Description
ScanMeg Inc. Module SIM‐P LED description Some LEDs are present on the SIM‐P module and also inside the emitter or the receiver head. Each one or group has a specific function. The SIM‐P has red, yellow and green LED to help identification. Both receiver and emitter heads use only red LEDs. SIM‐P module 1. LED Receiver Connected (Yellow) When a valid receiver is recognized, this LED is “on”. 2. LED Emitter Connected (Yellow) When ... - Page 12 ScanMeg Inc. Module SIM‐P 7. State of each cell sensor (Red) Shows the state of each individual cell. When a cell is obstructed, the equivalent LED is set “on”. Each LED “on” can have two intensity levels. An LED at half intensity shows an obstructed cell but means that according to the minimum diameter, there are not enough consecutive LEDs obstructed to activate the output. A total of 31 LEDs is present. In low resolution only 16 LEDs are functioning, one of every two LED. The other stays "off" all the time. In medium resolution, all the 31 LEDs are ...
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Page 13: Emitter Head
ScanMeg Inc. Module SIM‐P Emitter head 8. Power (Red) The LED is located at the opposite end from the connector. The one at the top is the power supply, LED status. When the SIM‐P module has power and the emitter is connected, this LED is “on”. 9. Sync (Red) The LED below the power LED is “on” to indicate the presence ... -
Page 14: Receiver Head
ScanMeg Inc. Module SIM‐P Receiver head 10. Power The LED is located at the opposite end of the connector. The one at the top is the power supply, LED status. When the SIM module is under power and the receiver is connected, this LED is “on”. 11. Presence Below the Power LED, two LEDs are present on either side of the center line of the photocell. When the photocell detects a valid, object according to the minimum detectable dimension, both LEDs are “on”. These LEDs always follow the state of the green LED (presence) located on the SIM‐P module. 12. Each cell state Below the power presence LED, two rows of LEDs are located on each side of the center line of the window. When a cell is ... -
Page 15: Display And Membrane Keypads
ScanMeg Inc. Module SIM‐P Display and membrane keypads The display has 32 alphanumeric characters mounted in two rows of 16 characters. When the display shows information, the two lines are used to display the message. When the display is used to show a parameter, the first line informs you which one of the parameters is actually displayed. In this situation, the second line shows the actual selected value for this specific parameter. A selected value has an arrow on each side of the display. When a value is displayed without the arrow, these parameter values are available, but not selected at this time. To select one of them and make this value the new actual setup for a parameter, just maintain the enter key for one second. The arrow on each side will appear to tell you the new selected parameter is accepted. At some point, a choice is necessary in order to continue. When this situation occurs, the F1 and F2 button are the choices available to you. In total, eight keys are present on the membrane keypads. These keys are: Scroll up (previous parameter menu) Displays the previous parameter menu available. From the first menu, it will display the last one. Scroll down (next parameter menu) Displays the next parameter menu available. From the last menu, it will display the first one. Next (parameter value) Shows the next available parameter value for each specific parameter menu Previous (parameter value) ... -
Page 16: Serial Link Protocol
ScanMeg Inc. Module SIM‐P Serial link protocol The serial link transmits the dimension and the position of the object presently within the field of view. The communication speed is selectable by accessing the right parameter menu in the SIM module. The number of bits, the parity and the number of stop bits are fixed and set to: XXXX,8,N,2 where XXXX represents the Baud rates from 9600 to 115,200 Bds Data format Regardless if we have selected the dimension or the position, the value sent on the serial link is written in BCD ASCII format. Each value is represented by a four digit number. According to the system used, the value of the 4 digits is: Metric XXXX where the number is in 1/10 of mm Imperial XXXX Where the number is in 1/10 of inch For example, if the value is 236, this value will be sent as the four digits 0236. Each digit is converted to ASCII format before the SIM‐P module transmits them. Using the same example, 0236 will be converted to 48, 50, 51, and 54 respectively or in hexadecimal form the data sent will be: 0x30, 0x32, 0x33, and 0x36. Protocol The transmission always starts with a LF (0x0A) and finishes with a CR (0x0D). Between these two ... -
Page 17: Emitter, Receiver Or Sim-P Module Swap: Useful Information
ScanMeg Inc. Module SIM‐P Emitter, receiver or SIM-P module swap: Useful information At any time, one can replace the emitter, the receiver or the SIM‐P module. Some of these replacements are transparent in the operation of the photocell, some are not. The parameters are stored in the SIM‐P module. After a power up, the parameters are read from the flash memory of the SIM‐P for normal operation. The receiver contains a memory backup of the SIM‐P’s parameters. The parameters can be retrieved if necessary. The emitter has no memory to store parameters. In the following paragraph, each component is described. Emitter The emitter can be replaced without any influence on the photocell operation. When the SIM‐P detects the receiver, all the actual parameters needed to operate correctly are sent to the emitter. As soon as the emitter has received the parameters, the photocell starts to function. Receiver An emitter can be replaced without any influence on the photocell operation. The receiver however has the backup memory of the SIM‐P module. When you modify it, the actual backup is no longer available. If you replace the receiver and the SIM‐P module at the same time, you cannot operate the photocell as it was working before the change. Try to avoid replacing the receiver and the SIM during the same power down operation. To update the backup memory of the SIM‐P module inside the new receiver, you need to follow one of these steps: Modify one parameter in the SIM‐P module. Every time a parameter is changed, the complete memory is sent to the receiver memory for backup purposes automatically. Any change of a parameter makes a full update in the receiver memory. ... -
Page 18: How To Install Or Remove Sensor Head With A Bracket
ScanMeg Inc. Module SIM‐P How to install or remove Sensor head with a bracket The sensor head can be removed or installed on its mounting bracket at any time. The cable can be unplugged at any time. In the following paragraph, we will connect and un‐connect the cables when the sensor is fixed onto its mounting bracket, but this step can be done in any sequence and not necessarily in the order shown in the following procedure . To remove a sensor from its mounting bracket, follow these steps: Remove the connector by rotating the shell counter clockwise direction by 120 ( Picture 1). Unplug the connector by pulling it down ( Picture 2). Grab only the photocell, without the bracket, and push up to release the bottom from the bracket (Picture 3). Maintain the pressure and pull the bottom part of the photocell away from the bracket. (Picture 4). Release the pressure on the photocell and remove it (Picture 5). Picture 1 ... -
Page 19: To Install A Sensor On Its Bracket, Follow These Steps
ScanMeg Inc. Module SIM‐P To install a sensor on its bracket, follow these steps: Firmly hold the sensor and insert the slot of the top cover into the top part of bracket. The photocell can be mounted in 3 different positions: Right side, Front or Left side. When you mount a sensor onto its bracket, you need to know which mounting hole you will be using (Picture 6). When it is done follow this sequence: Picture 6 Push the sensor up. This will force the retaining part of the bracket to come out (spring loaded) (Picture 7). When the base of the sensor clears the bottom part of the bracket holder, just push the base of the sensor towards the bracket (Picture 8). Then, gently let the sensor take his final resting place (going down) by the action of the spring loaded feature of the top moving part of the bracket (Picture 9). Replace the connector. The connector has a position key. Rotate the connector up to the position that the connector will enter (Picture 10). o When it is done, rotate the outside movable part of the connector 120 in a clockwise direction (Picture 11). Picture 7 Picture 8 Picture 9 Picture 10 Picture 11 ... -
Page 20: Sim Interface
ScanMeg Inc. Module SIM‐P SIM interface Menu Scroll UP and Down button Different menus are available. From these different menus, you can modify parameters or setups. To access the different menus, push the scroll up or scroll down button. Each time you push one of these buttons; the next or previous available menu will be accessed and shown on the display. The available menus are: Pre‐selected configuration Minimum detectable dimension Maximum detectable dimension Scan accuracy Cell cancellation Debounce time Latch time Output logic System information Backup parameters Emitter Intensity Language selection Measuring unit (metric or imperial) Serial link selection Baud rates for the serial link LED bar graph selection (dimension or position) Display contrast Readout of the dimension and the position value in real time Refer to each specific section of each menu for a complete description. For each menu, some ... -
Page 21: Previous And Next Parameter Value Button
ScanMeg Inc. Module SIM‐P Previous and next parameter value button Each time you access a new menu, a message identifying the actual menu being accessed is shown on the display. To access the available parameters on this menu, push the next or previous value button. Each time, a new available parameter value is displayed on the second line of the display. Only the active parameter in the accessed menu is displayed with the arrow symbol “ ► ◄ ”, on each side of the second line. None of the other non‐active parameters will show this arrow symbol to indicate that they are not active. To change a value to a new one, maintain the Enter button for one second to validate the new active parameter. At this time, the arrow symbol “ ► ◄ ” will appear to indicate it is now the new active ... -
Page 22: Parameters
ScanMeg Inc. Module SIM‐P Parameters Fast PC Setup (Pre‐selected configuration) One can set up many parameters at the same time by using the pre‐configured setup built into the SIM‐P module’s memory. Seven different setups are available. Each one modifies some parameter according to the following table: Parameter value for Pre-selected configuration For Heads: P150, P225, P300, P450, P600 Pre‐selected configuration Parameter Default Fast Average Accurate Standard Severe Extreme Minimum detectable Off Off Off Off ... -
Page 23: Minimum Detectable Dimension
ScanMeg Inc. Module SIM‐P Minimum detectable dimension This parameter is used to fix the minimum valid detectable dimension for the sensor. If an object dimension is smaller than this value, the open collector output is not activated and the serial link will send dimension and position with zero value (0). If the detected objet is larger or equal to this value, the PNP and the NPN output will be activated. The actual dimension and position readout will also be sent on the serial link. When the output is activated, the Presence LED is set “on”. The logic of the output can be inversed. This is done via the logic output parameters. In such a case, the logic described in this section is also inversed. According to the sensor model and the selected scanning resolution, different dimensions can be ... -
Page 24: Maximum Detectable Dimension (Need Software Version 1.4 Or Higher)
ScanMeg Inc. Module SIM‐P Maximum detectable dimension (need software version 1.4 or higher) This parameter is used to fix the maximum detectable dimension by the Photocell. If the object dimension is bigger than this value, the output is not activated. If the detected objet is smaller or equal to this value and respect the minimum detectable dimension, the PNP or the NPN output will be activated. When the output is activated, the Presence LED is set “on”. The logic of the output can be inversed. This is done via the logic output parameters. In such a case, the logic described in this section is also inversed. According to the sensor model and the selected scanning resolution, different dimensions can be ... -
Page 25: Scan Accuracy
ScanMeg Inc. Module SIM‐P Scan accuracy The detection precision depends of the sensor model. Each model has a different accuracy of detection. The numbers of cells are the same for all models. As the field of view increases the ... - Page 26 ScanMeg Inc. Module SIM‐P The scan accuracy has an influence on the scan rate. The more precise it scans the more cells have to be checked for the final result. In Coarse mode the scan rate is set to 1500 scans/sec.. In Standard mode, the scan rate is 800 scans/sec. and in Fine mode, the scan rate is reduced to 400 scans/sec.. In HS mode, the scan rate is 1400 scans/sec. In this mode we scan the same number of cells as in the coarse mode but with the accuracy of the equivalent mode. The field of view is reduced but the scan rate is optimum. When the Standard HS or the Fine HS mode are chosen, only a section of the field of view is functioning to run with High Speed scan rate at the Standard or the Fine resolution. In HS mode, only half of the field of view is functioning for the Standard HS mode and only ¼ of the field of view for the Fine HS mode. The scan rates are: Scans Rate Field of view (in.) Mode scans/second P150 P225 P300 P450 P600 Coarse 6 9 12 18 24 1500 Standard 800 6 9 12 18 ...
- Page 27 ScanMeg Inc. Module SIM‐P The scanning zone will be displayed on the LED status of each cell. When this mode is chosen, all non‐ scan LEDs are displayed like cancelled LEDs (note: they are not really cancelled, as one can see as soon as one comes back to a scanning mode without the HS feature). However previously cancelled LEDs, if any, stay canceled regardless of the display. The scan accuracy selection has an effect on the available Baud rate for the serial link and vice versa. If one of the Coarse, Standard HS or Fine HS is selected, only Baud rate 38400 Bds and slower will be available on the Baud Rate selection parameter menu. Conversely, if a 57,600 or 115200 Bds rate is selected when they are available on the Baud rate parameter menu, the coarse accuracy, the Standard HS accuracy and the Fine HS accuracy will not be available in this menu. Make sure that you select the right Baud rate to avoid some limitation on the scan accuracy mode. In summary, if you choose Baud rate of 38400 Bds or lower, all of the scan accuracy modes will be available. Scan accuracy Warning F YOU TRY TO SCAN WITH ACCURACY IN FINE MODE AND THE DISTANCE OF THE EMITTER OR RECEIVED IS LESS THAN FEET YOU NEED TO SET THE INTENSITY OF THE EMITTER TO THE MINIMUM F NOT THE INTENSITY IS TOO HIGH MAKING A BLUR EFFECT ...
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Page 28: Cell On/Off (Cell Cancellation)
ScanMeg Inc. Module SIM‐P Cell On/Off (cell cancellation) At any time you can cancel cells. These cells will no longer be used to detect an object. It is the equivalent of removing the actual cell from the sensor. It is useful when a mechanical structure is within the field of view of the sensor or in the unexpected event of a defective cell. When a cell is cancelled, the equivalent LED will flash to indicate the state of this cell (cancelled). This menu provides executable functions. Four actions can be taken: Set Reset Enable Disable The Set function This function will look for non‐functioning cells and will cancel them. All cells are scanned and, if any cells are in the obstructed state, these cells will be placed in memory, inside a list containing all the actual cancelled cells. None of these cancelled cells will be used for detection in the normal operation of the photocell. At the same time, regardless of the state of this function before the execution of the set function (enable / disable) command, this function will automatically Enable the cell ... - Page 29 ScanMeg Inc. Module SIM‐P The Enable/ Disable state When a cell cancellation command is executed, a list of the cancelled cells is kept in memory. When Cancellation is enabled, cells present in the list in memory are cancelled. When this function is in Disabled state, the list is still there, but no cells are cancelled. This permits one to test all of the cells in the photocell without losing the state of the cancelled cells. At any time you can enable them. The Enable / Disable state is the equivalent of the Set or Reset function but without any update or reset of the cancelled list. User Manual 29 Version 1.3 ...
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Page 30: Debounce Time (Photocell Feature Only)
ScanMeg Inc. Module SIM‐P Debounce time (photocell feature only) This is the minimum amount of time that an object must stay in the field of view of the photocell in order to be detected. Once a change of state has been detected by the sensor, a counter is started. If the sensor goes back to its original state before the counter has reached your selected time period there will be no change in the state of the output signal. This feature is the same for obstructed state to non‐obstructed state as well as for the non‐obstructed state to obstructed state. This allows the user to adjust the sensor to ignore transient objects such as flying debris, bark, chips or sawdust. To set up a new debounce time, choose the pre‐selected value available from the list. When the right one is displayed, just maintain the Enter button for one second to fix the chosen debounce time in memory. The debounce time has only an effect on the PNP and NPN output, the photocell function of the SIM‐ P module. If the scan dimension of an object is greater of the minimum object dimension parameter, the serial link and the analog output will reflect the dimension and the position of this object, regardless of the set debounce time. In fact, the scanner function always reacts immediately with an object in front of the sensor. Latch time (photocell feature only) Once the photocell has detected an object, the duration of the output signal (regardless of the object ... -
Page 31: Output Logic (Photocell Feature Only)
ScanMeg Inc. Module SIM‐P Output logic (photocell feature only) Once a presence is detected by the photocell the output changes. You can choose either a Light logic operation or a Dark logic operation. The Light logic will close the contact when a presence is detected and release the contact when the object leaves the field of view. The Dark logic is the inverse of the Light logic. The output logic is used only for the photocell feature of the SIM‐P module. System information When this menu is the active one, the display shows the software version of each component and the model of the sensor head. The information appears on the display in the following order: Software version of the SIM‐P module Model type of the sensor head Software Version of the emitter head Software version of the receiver head Backup parameters All parameters are located within the SIM‐P module. When an emitter and/or a receiver is replaced, the photocell will continue to operate as before. If one replaces the SIM‐P module, the situation is not the same. You can retrieve all the original ... -
Page 32: Emitter Intensity
ScanMeg Inc. Module SIM‐P Emitter intensity Eleven intensities are available. At minimum intensity, the maximum operating distance is 7.5 feet (2 metre). At maximum intensity, the operating distance is up to 100 feet (30 metre). The minimum intensity is an absolute necessity when the emitter and the receiver are mounted within a very short distance of one another and you are trying to detect an object using the high precision (mode). The Maximum intensity setting is too intense for short operating distance and some receiver cells will make a reading error around both edges of the object (blur effect), losing accuracy. Language selection Two languages are available for the SIM‐P interface. The languages are: English and French. Just select the language. When the language is validated, all the menus are displayed with this new set‐ up. Measuring unit The metric system and the imperial system are the two measuring systems available. When one of these is selected, all the corresponding values follow the chosen measuring system until a new ... -
Page 33: Baud Rate Selection
ScanMeg Inc. Module SIM‐P Baud rate selection According to your link, select the right Baud rate. Regardless if RS‐232 or RS‐422 is selected for the serial output, the same Baud rate is applied to each one. In total, 5 choices are available for the Baud rate: 9600, 19200, 38400, 57600 and 115200 but if the Coarse, Standard HS or Fine HS accuracy is selected, only three choice are available. These choices are: 9600, 19200 and 38400 Bds. As soon as one changes the scan accuracy mode to standard or fine, all Baud rates becomes available again. Inversely, if you select 57600 or 115200 Bds when they are available, when you return to the scan accuracy parameter, the SIM‐P module will automatically remove the possibility to select Coarse scan accuracy, Standard HS scan accuracy or Fine HS scan accuracy. These scan accuracies will come back to the available state if you reduce the Baud rate to 38400 or slower. LED bar graph display selection The LED bar graph located on the bottom right side of the SIM‐P module follows the dimension’s analog value or the position’s analog value. One can select which one, the dimension or the position to be displayed on the LED bar graph. When nothing is detected (4 mA), no LEDs are “on” on the bar ... - Page 34 ScanMeg Inc. Module SIM‐P Actual readout (dimension and position) When this menu is selected, the display of the SIM‐P module will show the actual dimension and position as detected by the sensor. The display shows the value in millimeters if the measuring unit is set to metric or in inch if the measuring unit is set to imperial. In both cases, the value shown on the display has one digit after the point meaning numbers are displayed in 1 /10 of mm or 1/10 of inch increment. The F1 key toggles the display between the metric or imperial value of the analog 4‐20mA value as driven on the analog output. This 4‐20 mA value is the one used on the actual analog output for the dimension and the position. The value displayed is in 1/100 of a mA, in this case, 2 digits after the point (x.xx). To return to metric or imperial value, just push F1 again. Each time that you arrive at this menu, the display shows the dimension and the position using metric or imperial values. One needs to push the F1 to see the equivalent analog value. This feature is useful to verify the system. By using this feature, one can verify if the value read by the controller or PLC is a valid one. The ...
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