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Quick Guided Tour

Creating a New Protocol

It is entirely possible that the protocol used by your device is
unavailable in

COMet

. If so, you must define it using the

technical information sheet that came with your device.

Let us suppose that the ZOO Shipping Company has just
purchased a new bar code reader, the protocol of which is not
recognized by

COMet

Excerpt from the manufacturer’s information:

Quazar Bar Code Reader
Protocol : TX-22
Type : touch reader
Communication parameter :
Speed : 2,400 baud
Data bits : 8
Parity : none
Stop bit : 1
Initialization :

Sequence

Check characters on

Check characters off

09 01

09 00

Configuration

n = 00 or 01

Reading

nnn =

code data +

check character

09 n

01nnn 02

Содержание COMet

Страница 1: ...DOC PEM COMet6 US 02 08 00 COMet...

Страница 2: ...ever except in compliance with the terms of this license No part of this manual may be copied reproduced or transmitted by any means whatsoever unless it is for the purchaser s personal use without th...

Страница 3: ...hical Conventions Page 1 Quick Guided Tour Page 2 3 Introduction Page 2 3 Presentation of the Zoo Shipping Company Page 2 4 Setting Up the Environment Page 2 5 Data Acquisition Page 2 9 Creating a New...

Страница 4: ...tions S terms taken from the interface itself such as commands appear in bold S keys appear in small caps as in the following example Press the SHIFT key S numbered lists mean there is a procedure to...

Страница 5: ...e a new hardware environment and configure source devices using different communication protocols This example features a weighing machine a bar code reader and keyboard data entry as means of gatheri...

Страница 6: ...ervising the process enters the price per kilo Weighing the package makes it possible to calculate its shipping price and reading the bar code indicates its destination The information gathered is ins...

Страница 7: ...s have been added to the first two making a total of six Using the Options dialog box you will have to disable ports 7 and 10 which will not be used in this example Setting Up the Work Environment Usi...

Страница 8: ...several Var fields S Destination the data will be acquired when the bar code on the package is read S kg the value will be acquired when the package is wei ghed S CodeOp the value is the price per kil...

Страница 9: ...ttings dialog box appears Complete the boxes indicated then click on OK Figure 5 Configuring the Bar code Reader Selecting Settings for the Weighing Machine 1 Go to port 3 2 Click on or press F9 The S...

Страница 10: ...Source device settings dialog box appears Since the keyboard is a special device the dialog box contains only one box for selecting the target field Complete the box as shown then click on OK Figure...

Страница 11: ...CMT as the environment name then click on OK To launch data acquisition 1 Click on or press F6 The Transfer dialog box appears Figure 9 The Transfer dialog box 2 Check the Update only box data will b...

Страница 12: ...e in the table Figure 10 Displaying Values during Transfer To show that the transfer process is taking place the but ton becomes Obtaining a Preview S To better monitor the process request a label pre...

Страница 13: ...the ZOO Shipping Company has just purchased a new bar code reader the protocol of which is not recognized by COMet Excerpt from the manufacturer s information Quazar Bar Code Reader Protocol TX 22 Typ...

Страница 14: ...formation complete the diffe rents boxes as shown below Figure 12 Configuring a source device 5 Once the dialog box has been completed click on Settings The Protocol dialog box appears 6 Check the Pro...

Страница 15: ...CII 61 circumflex accents ASCII 94 spaces ASCII 32 extended ASCII characters ASCII 128 onwards backslashes ASCII 124 To enter these characters use one of the following notations 1 is a capital letter...

Страница 16: ...This step allows you to check whether the data received meets user expectations Figure 14 Data Acquisition In our case we are expecting a variable message According to the manufacturer s specification...

Страница 17: ...a Extraction Key K We know that the message is of variable length L The first data byte is placed in second position after the message start byte M The stop character is B N We want an offset of 1 byt...

Страница 18: ...boxes allowing you to input precise reference information for any new protocol 2 Complete all boxes with the values mentioned above Try to include the model revision number in the protocol box as man...

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