GE CTR 80 manual Interface Commands, Serial Operation, Sample Period, Duplex Mode, Linefeed

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10 Digital Communication Interface

10.1.2.2Sample Period

The sample period is the next parameter in the menu and prompted with

“SPEr”. The sample period is the time period in seconds between temperature measurements transmitted from the serial interface. If the sample rate is set to 5, the instrument transmits the current measurement over the serial interface ap- proximately every five seconds. The automatic sampling is disabled with a sample period of 0. Press “SET” to choose to set the sample period. Adjust the period with “UP” or “DOWN” and then use “SET” to set the sample rate to the displayed value.

10.1.2.3Duplex Mode

The next parameter is the duplex mode indicated with “dUPL”. The duplex mode may be set to half duplex (“HALF”) or full duplex (“FULL”). With full duplex any commands received by the thermometer via the serial interface are immediately echoed or transmitted back to the device of origin. With half du- plex the commands are executed but not echoed. The default setting is half du- plex. The mode may be changed using “UP” or “DOWN” and pressing “SET”.

10.1.2.4Linefeed

The final parameter in the serial interface menu is the linefeed mode. This pa- rameter enables (“On”) or disables (“OFF”) transmission of a linefeed charac- ter (LF, ASCII 10) after transmission of any carriage-return. The default setting is linefeed off. The mode may be changed using “UP” or “DOWN” and press- ing “SET”.

10.1.3Serial Operation

Once the cable has been attached and the interface set up properly the control- ler will immediately begin transmitting temperature readings at the pro- grammed rate. The serial communications uses 8 data bits, one stop bit, and no parity. The set-point and other commands may be sent via the serial interface to set the temperature set-point and view or program the various parameters. The interface commands are discussed in Section10.2. All commands are ASCII character strings terminated with a carriage-return character (CR, ASCII 13).

10.2Interface Commands

The various commands for accessing the calibrator functions via the digital in- terfaces are listed in this section (see Table 3). These commands are used with the RS-232 serial interface. The commands are terminated with a carriage-re- turn character. The interface makes no distinction between upper and lower case letters, hence either may be used. Commands may be abbreviated to the minimum number of letters which determines a unique command. A command may be used to either set a parameter or display a parameter depending on

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Contents GE Kaye World Headquarters Table of Contents General Operation Parts and ControlsController Operation Maintenance Trouble Shooting Digital Communication InterfaceWiring Diagram Figures Tables Symbols Used Before You StartSafety Information Canadian Standards AssociationBurn Hazard Bath Fluids Cold Baths Customer Service Information World HeadquartersIntroduction Specifications Environmental ConditionsHardware Warranty and Assistance Instrument WarrantyIn-Warranty Repairs After-Warranty RepairsEquipment Maintenance Agreements Customer SupportCustomer Support Agreement Customer Site AssistanceUnpacking Quick StartSet-up Power Setting the TemperatureAccess set-point selection Set-point 1, 25.0C currently used Installation Drain Valve Installation InstructionsBath Environment Dry-out PeriodFilling With Fluid Necessary Comparison Calibration GeneralBath Use Calibration of Multiple Probes Parts and Controls Control PanelBath Tank and Lid Back PanelBack Panel Temperature Range General OperationBath Fluid ViscositySafety Thermal ConductivityThermal Expansion Electrical ResistivityCost Commonly Used FluidsWater Distilled EthanolMineral Oil Fluid Characteristics TableSilicone Oil Dow Corning 200.05, 200.10 Limitations and Disclaimer Table of Various Bath FluidsHeater StirringRefrigeration Operation Temperature ControllerImportant Refrigerant Information General Operation Bath Temperature Temperature Set-pointController Operation Programmable Set-pointsDisplay Temperature Temperature Scale Units Set-point ValueScan Control ScanScan Rate Secondary Menu Heater PowerProportional Band New proportional band setting Cutout CO= 80CController Configuration Operating ParametersHigh Limit Low LimitSerial Interface Parameters CoolingBaud Rate Duplex ModeSample Period Calibration Parameters LinefeedHard Cutout 11.2 R0Alpha DeltaDigital Communication Interface Serial CommunicationsWiring SetupRS-232 Cable Wiring for IBM PC and CompatiblesInterface Commands Duplex ModeSerial Operation Sample PeriodSecondary Menu Lfeed=on Lf=on Calibration Procedure Calibration ProcedureCalibration Equipment CalibrationCalibration Procedure Maintenance Maintenance Trouble Shooting TroubleshootingCE Comments Low Voltage Directive SafetyEMC Directive Wiring Diagram Revisions

CTR 80 specifications

The GE CTR 80 is an advanced technology system that has redefined efficiency and reliability in the realm of industrial control systems. Developed by General Electric, this system is tailored for various sectors, including manufacturing, energy production, and process management. Its design emphasizes modernity and innovation, making it a superior choice for companies aiming to optimize operations.

One of the main features of the GE CTR 80 is its robust control architecture. This architecture leverages a distributed control system (DCS) model, allowing for decentralized operation while maintaining central oversight. This structure enhances reliability by reducing the chances of system failures, and it enables quick local responses to changing operational conditions, ensuring minimal downtime.

The GE CTR 80 integrates cutting-edge technologies, such as advanced data analytics and machine learning algorithms. These technologies provide real-time insights into equipment performance and operational efficiency, facilitating predictive maintenance and proactive decision-making. The built-in analytics capabilities help operators identify trends and potential issues before they escalate into critical problems, significantly lowering operational risks.

The system is equipped with a user-friendly interface that promotes ease of use and navigation. Operators can quickly access various parameters and performance metrics through intuitive dashboards. Furthermore, customizable alerts and notifications ensure that operators receive timely information about any irregularities in system performance, enabling swift interventions when necessary.

Another notable characteristic of the GE CTR 80 is its seamless integration with existing systems. It supports open communication protocols, making it compatible with various sensors and devices, which is essential for organizations looking to upgrade their current infrastructure without overhauling their entire setup. This adaptability makes the CTR 80 an ideal solution for industries undergoing digital transformations and seeking to enhance connectivity.

Moreover, the GE CTR 80 is built with security as a priority. It features robust cybersecurity measures to protect data integrity and prevent unauthorized access, ensuring that operational data remains confidential and secure from potential threats.

In summary, the GE CTR 80 is a powerful industrial control system that combines reliability, advanced analytics, user-friendly functionality, and robust security features. Its versatility and adaptability make it a preferred choice for modern industrial applications, driving operational excellence and enhancing productivity across various sectors.
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