100/140 Series. 2D Data Matrix Specifications

Transcription

1 100/140 Series 2D Data Matrix Specifications Table of Contents 1 Introduction D Label Specification and Position DS140 Datamatrix 2D Scanner Engineer Test Mode Interfacing a PC in Scanner Test Mode Engineer Set-up of the Cognex DM100 Scanner...4 Appendix 1 DataMan Setup Tool... 6 Appendix 2 - Electrical Connectivity Configurations Specifications_100_140_2D Issue 1 May 2009 Page 1 of 12

2 MaxiMailer 2D Data Matrix Specification 1. Introduction The option of reading 2D Data Matrix labels is available on the following modules: 3 Plate Folder (1442 & 1443) Bottom Read only. 2 Plate Folder (1440) Top Read only Intelligent Feeder (1451) Top Read only. The reading unit is positioned, calibrated and adjusted by a trained technician (i.e. its set-up cannot normally be changed by an operator). The diagram below defines the size and position of the label and its cells. 2. 2D Label Specification and Position Specifications_100_140_2D Issue 1 May 2009 Page 2 of 12

3 3. DS140 Datamatrix 2D Scanner Engineer Test Mode This document is an overview of how to use the Cognex Dataman set-up tool in conjunction with the DM100 scanner where fitted to the DS140. Operationally the scanner needs no special set-up, though the set-up tool may be useful for engineers to verify correct functionality of the system. 3.1 Interfacing a PC in Scanner Test Mode DS140 modules which support 2D reading are equipped with an interface board situated between the DM100 scanner and the module control board. A switch on the interface board, in its normal (Run) position permits 2-way communication between the scanner and its controller. With the switch in the test (PC) position, the scanner is connected directly to a PC, either via a serial cable (9-way D type, pin-for-pin) or a USB cable connected temporarily to a third port on the interface board as shown below. In this mode the communication is between the scanner and the Dataman set-up application running on the PC. The control board does not communicate with the scanner in this mode except to trigger the scanner at the correct time as documents pass under the scanner. This mode of operation is useful for checking correct targeting and decoding of the 2D label. Note that the DS140 will eventually stop with a Too many no reads fault. Test PC running Cognex 'Dataman' application RX TX Interface PCB PC Run TX RX Trigger DM100 Scanner TX RX Module Controller PCB Specifications_100_140_2D Issue 1 May 2009 Page 3 of 12

4 3.2 Engineer Set-up of the Cognex DM100 Scanner The following applies to the Mark-reading Feeder and the Feeder Folder (2-Plate) only. There is no calibration as yet foreseen for the Tower Folder (3-plate). The Mark-reading Feeder and the Feeder Folder are set-up at the factory and do not normally need re-calibration. However, should re-calibration be required the procedure is as follows: 1. Initial adjustment of the scanner mount: Adjust the two Allen screws on the side of the scanner mount so that the centre of the field of view is midway between the two horizontal metal guides. Once this adjustment is correct these screws should NOT be re-adjusted without re-calibrating. This adjustment is verified by checking the alignment in the results display of the DataMan Setup Tool. Do this by firstly ensuring that the connection select switch on the interface is set to test so that the PC (any available PC) and the scanner can communicate and then running the DataMan Setup Tool on the PC. Click on Connect and wait for the connection to the scanner to be made. Once connected click on results display. Then click on (manual) trigger (second icon on the left on the upper toolbar). The result should be as below with the field of view centralised between the two metal guides. If not, re-adjust and re-capture. NB: In the view below, a 2D matrix has been placed precisely midway in the metal aperture, to aid alignment. 2. Calibration: The natural field of view of the scanner is constrained by the metalwork surrounding the datamatrix as it passes by the scanner. This is particularly so for the Mark-reading Feeder and the Feeder Folder where is field of view constraint is in the order of 10mm. Therefore in order to ensure accurate triggering, the nominal distance between the gate sensor and the centre of the field of view needs to be calibrated as described on the following page: Specifications_100_140_2D Issue 1 May 2009 Page 4 of 12

5 Connect the DataMan setup Tool as described above and display the results window. Wind in a document by hand until the datamatrix is under the scanner. Check the horizontal alignment of the scanner by clicking on (manual) trigger. The datamatrix image should be centred horizontally. If not adjust the mount in the horizontal plane. Define a suitable job and run 6 forms through. Observe the sequence of images in the result screen on the PC. If the average position of the centre of the matrices is off centre then adjust the LE to centre label cal (mm). This window is found in Engineer under the settings category for that module (see below). Increasing the calibration has the effect of delaying the trigger point and vice-versa. Note that because the firmware is not able to communicate with the scanner no labels are seen by the firmware. Having completed the calibration, the connection select switch on the interface should be set to run for normal operation. Specifications_100_140_2D Issue 1 May 2009 Page 5 of 12

6 Appendix 1 DataMan Setup Tool The following screen shots below capture the settings required the scanner in this application. If any of these settings differ, then the correction must be made and the settings saved to the device. Under normal modes of operation the module control firmware will initialise the scanner settings as required on power-up. Specifications_100_140_2D Issue 1 May 2009 Page 6 of 12

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12 Appendix 2 - Electrical Connectivity Configurations Electrical connectivity requirements for the various modules are shown below: MR Feeder/2 Plate Folder Channel 1 Channel 2 Interface Board MS3: PN: DM100: MS3: PN: DM100: no provision on Ch2 Main Board Socket J24 J25 Interface Cable MS3: Standard cable MS3: Standard cable DM100: DM100 cable 1 DM100: no provision on Ch2 Three Plate folder Channel 1 Channel 2 Interface Board MS3: DM100: (unpopulated) 2 MS3: MDM100: no provision on ch2. Main Board Socket J7 Expansion board J20 Interface Cable MS3: Special cable DM100: Special DM100 cable MS3: Standard cable DM100: no provision on ch2. Specifications_100_140_2D Issue 1 May 2009 Page 12 of 12