Omega Engineering #M3350/0101 manual Establishing Communication with Controllers, Introduction

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4.Establishing Communication with Controllers

4.1Introduction

Once you have connected the controllers and the computer to the network, installed the CN8-SW software, and changed the password on the MULTI login account, you are ready to establish communication between the CN8-SW computer and the controllers on the network.

You must do the following tasks.

∙Use the front panel user interface of each controller to assign each a unique address (between 1 and 254).

∙If the Omega Plus controllersÕ communication parameters have been

changed from the factory defaults, use the front panel of each controller to set the communication parameters at their default values as described in 4.2.

∙Use the Communications option on the CN8-SW Options menu to specify the COM port to be used by the Multi-Com software. If you choose not to use the automatic Òfind controllersÓ feature described in 4.4.2 to set up your

network, then you must also specify the baud rate to be used by the CN8- SW software.7 Configuration of communication parameters is described in 4.3.

∙Set the communication parameters of the controllers that support the

original Omega protocol to match the CN8-SW software as described in 4.2.

∙Make the CN8-SW system aware of all devices on the network as described in 4.4. This can be done using the automatic Òfind controllersÓ operation, in which the CN8-SW system seeks and finds Omega Plus controllers using the default baud rate of each controller and sets all the Omega Plus controllers to work at 9600 baud. Alternatively, you can add controllers to the network one at a time. If you use this manual method, then the software will poll at the baud rate specified in the CN8-SW Communications Setup window.

∙Save the set up as an .MCS files as described in 4.8.

7If you do use the Òfind controllersÓ function, the CN8-SW software will automatically use 9600 baud.

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Contents CN8-SW Table of Contents Configuring and Running Ramp and Soak Recipes Changing Controller Mode and Using AutotuneViewing and Changing Controller Configuration Parameters CN8-SWUserÕs GuideTable of Contents 11-1CN8-SWUserÕs Guide Features Transforms a PC into an Operator StationGraphical Interface Logging Storing and Loading Configuration Parameter SetsAutomated Ramp and Soak Cycles Introduction1 CN8-SW Computer Local AlarmsHardware and Software Requirements ControllersOverview of Setup Tasks Step Task Section This ManualCN8-SWUserÕs Guide Step Task Section in this Manual File Menu Overview of CN8-SW MenusAvailability of Functions Function Purpose SectionEdit Menu View MenuController Menu Alarms Options Menu Ramp/Soak MenuHelp Menu General Instructions for Using CN8-SW Windows Menu Convention Used in This ManualCN8-SWUserÕs Guide Wiring the Network and Connecting the Computer IntroductionConnecting Controllers and the Computer to the Network Introduction2 RS-232 Interface Wiring the Network and Connecting the Computer 3 RS-485 NetworkCN8-SWUserÕs Guide Installing the Software and Logging Installing the SoftwareTo install the software CN8-SWUserÕs Guide Installing the Software and Logging Starting the SoftwareLogging In to CN8-SW Using the Default Account To logChanging the Password for the Default Account To change the passwordSetting Up Operator Accounts Permissions AvailableTo see the permissions available to a user account Procedure To add an operator login accountEditing an Operator Account Deleting an Operator AccountLogging Out of the CN8-SW Application Establishing Communication with Controllers Communication Parameters Network Addresses Establishing Communication with ControllersConfiguring Communication Parameters for CN8-SW System To configure the CN8-SW communication settingsEstablishing Communication with Controllers Automatically Using the Find Controllers Option Recognizing Controllers with the CN8-SW SoftwareTo use the automatic function If any controllers were not recognized Page Manually Using the Controller Menu To add a controller manuallyDeleting a Controller To delete a controllerChanging Baud Rate after Communication Has Been Established Establishing Communication with Controllers Closing an .MCS File Naming ControllersSaving the .MCS File Creating a New .MCS FileOpening an Existing .MCS File CN8-SWUserÕs Guide Configuring Local Alarms ProcedureCN8-SWUserÕs Guide Viewing Process Values and Changing Setpoint Viewing PV and SP in the Main Window Viewing PV and SP in a Graph To view the real-time trend graphChanging the Setpoint Using the Setpoint Dialog Box To change a controllerÕs setpointSetpoint Configuring and Invoking the Single-Step Ramp Function CN8-SWUserÕs Guide To invoke the single step ramp function Changing Controller Mode and Using Autotune To change a controllerÕs modeCN8-SWUserÕs Guide Using Configuration Parameter Displays Viewing and Changing Controller Configuration ParametersAccessing Configuration Parameter Displays To access the parameter displaysCN8-SWUserÕs Guide Configuring and Running Ramp and Soak Recipes Configuring CN8-SW Recipes Creating a New RecipeConfiguring and Running Ramp and Soak Recipes Editing an Existing Recipe Running CN8-SW Recipes Starting to Run a RecipeTo run a CN8-SW Ramp/Soak recipe Holding Pausing Recipe Execution To hold execution of a CN8-SW recipeResuming Recipe Execution To resume execution of a ÒheldÓ recipeStopping Recipe Execution To stop execution of a CN8-SW recipeConfiguring Controller Ramp and Soak Parameters CN8-SWUserÕs Guide Configuring and Running Ramp and Soak Recipes Running Controller Ramp and Soak Cycles Storing and Loading Controller Configurations Storing Configuration Storing and Loading Controller Configurations Loading Configuration Storing and Loading Controller Configurations 10-6 Turning On the Logging Function To turn on the logging functionViewing and Printing Log Files Turning Off the Logging FunctionTo turn off the logging function Index 12-2