Omega Engineering #M3350/0101 manual Configuring Communication Parameters for CN8-SW System

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CN8-SW™UserÕs Guide

4.3Configuring Communication Parameters for CN8-SW System

Your goal is to select the COM port to be used by the CN8-SW software.

∙If you do not plan to use the automatic Òfind controllersÓ option described in 4.4, then you can also specify a baud rate other than 9600 (the default) for the network.

∙If you do use the automatic Òfind controllersÓ feature, then the software will use 9600 baud, regardless of the baud rate specified using the Communications Setup window shown below.

The other communication parameters must match the controller settings. All use 8 data bits, no parity, 1 stop bit, which are also the CN8-SW defaults.

To configure the CN8-SW communication settings:

1.Launch the CN8-SW application as described in Section 3 and log in as MULTI.

2.Select Options Communication. The Communications Setup window will open.

3.Use the Connector dropdown list to pick the port to be used. Sometimes, particularly when using a laptop computer, a COM port may already be in use without your being aware of it. If you get a message ÒCOM 1 (or 2) in useÓ when you attempt to use the CN8-SW computer to poll controllers over the network as described later in this section, use a different COM port.

4.If you do not plan to use the automatic Òfind controllersÓ option, use the Baud Rate dropdown list to set the baud rate at which you want the network to operate, usually 9600.

5.If the CN8-SW communication settings were changed from the defaults, use the Data Format dropdown list to set n,8,1.

6.If necessary, change the Polling Frequency from the default value. The Polling Frequency is the minimum number of milliseconds in the interval between the CN8- SW system receiving a reply from one controller and the system trying to communicate with the next controller.

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Contents CN8-SW Table of Contents Viewing and Changing Controller Configuration Parameters Changing Controller Mode and Using AutotuneConfiguring and Running Ramp and Soak Recipes CN8-SWUserÕs Guide11-1 Table of ContentsCN8-SWUserÕs Guide Transforms a PC into an Operator Station FeaturesGraphical Interface Automated Ramp and Soak Cycles Storing and Loading Configuration Parameter SetsLogging IntroductionHardware and Software Requirements Local Alarms1 CN8-SW Computer ControllersStep Task Section This Manual Overview of Setup TasksCN8-SWUserÕs Guide Step Task Section in this Manual Availability of Functions Overview of CN8-SW MenusFile Menu Function Purpose SectionEdit Menu View MenuController Menu Alarms Options Menu Ramp/Soak MenuHelp Menu Menu Convention Used in This Manual General Instructions for Using CN8-SW WindowsCN8-SWUserÕs Guide Introduction Wiring the Network and Connecting the ComputerConnecting Controllers and the Computer to the Network Introduction2 RS-232 Interface 3 RS-485 Network Wiring the Network and Connecting the ComputerCN8-SWUserÕs Guide Installing the Software and Logging Installing the SoftwareTo install the software CN8-SWUserÕs Guide Starting the Software Installing the Software and LoggingTo log Logging In to CN8-SW Using the Default AccountTo change the password Changing the Password for the Default AccountSetting Up Operator Accounts Permissions AvailableTo see the permissions available to a user account To add an operator login account ProcedureEditing an Operator Account Deleting an Operator AccountLogging Out of the CN8-SW Application Establishing Communication with Controllers Communication Parameters Establishing Communication with Controllers Network AddressesTo configure the CN8-SW communication settings Configuring Communication Parameters for CN8-SW SystemEstablishing Communication with Controllers Recognizing Controllers with the CN8-SW Software Automatically Using the Find Controllers OptionTo use the automatic function If any controllers were not recognized Page To add a controller manually Manually Using the Controller MenuTo delete a controller Deleting a ControllerChanging Baud Rate after Communication Has Been Established Establishing Communication with Controllers Saving the .MCS File Naming ControllersClosing an .MCS File Creating a New .MCS FileOpening an Existing .MCS File CN8-SWUserÕs Guide Procedure Configuring Local AlarmsCN8-SWUserÕs Guide Viewing Process Values and Changing Setpoint Viewing PV and SP in the Main Window To view the real-time trend graph Viewing PV and SP in a 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 To change a controllerÕs mode Changing Controller Mode and Using AutotuneCN8-SWUserÕs Guide Accessing Configuration Parameter Displays Viewing and Changing Controller Configuration ParametersUsing Configuration Parameter Displays To access the parameter displaysCN8-SWUserÕs Guide Configuring and Running Ramp and Soak Recipes Creating a New Recipe Configuring CN8-SW RecipesConfiguring 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 To hold execution of a CN8-SW recipe Holding Pausing Recipe ExecutionTo resume execution of a ÒheldÓ recipe Resuming Recipe ExecutionTo stop execution of a CN8-SW recipe Stopping Recipe ExecutionConfiguring 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 To turn on the logging function Turning On the Logging FunctionViewing and Printing Log Files Turning Off the Logging FunctionTo turn off the logging function Index 12-2