Omega Engineering CYD201 and CYD208 Input YCx Returned Nothing, End Scanning Model CYD208 Only

Page 34

OMEGA Model CYD201/CYD208 User’s Manual

YC

Channel Scanner Channel (Model CYD208 Only).

Input: YCx

Returned: Nothing

Remarks: Asynchronously selects a scanner channel for readout independent of scan feature, where x = channel 1 - 8.

YH

End Scanning (Model CYD208 Only).

Input: YH

Returned: Nothing

Remarks: Halts input scan at current input channel. Place scanner on hold when sending any other commands to scanner or unpredictable results may occur.

YS

Begin Scanning (Model CYD208 Only).

Input: YS

Returned: Nothing

Remarks: Starts input scan from current input channel. The instrument skips every channel with a dwell time of zero.

WA

Switch ID and Alarm Data.

Input:

WA

Returned: For a Model CYD201, returns:

 

[switch ID],[high or low alarm],[alarm sign],[alarm

 

setpoint](CR)(LF)

 

For a Model CYD208, returns:

 

[switch ID],[high or low alarm],[alarm sign],[alarm

 

setpoint],[active channel number](CR)(LF)

Remarks:

Provides the switch ID and alarm data. The switch ID

 

parameter is 0 through 3 for the Model CYD201. It is the sum

 

of 1 if the alarm set enable is set, plus 2 if relay latching is

 

desired. The switch ID parameter is 0 through 7 for the Model

 

CYD208. It is the sum of 1 if the alarm set enable is set, plus

 

2 if relay latching is desired, plus 4 if the alarm fix is enabled.

 

High or Low Parameter: H = high alarm, L = low alarm.

4-6

Remote Operation

Image 34
Contents M789-038A June Warranty Return Requests / InquiriesTable of Contents Table of Contents List of Illustrations This Page Intentionally Left Blank Table of Contents General Chapter IntroductionModel CYD201/CYD208 General Description Model CYD201/CYD208 Specifications ResolutionHandling Cryogenic Storage Dewars LHe and LN2 Safety PrecautionsHandling Liquid Helium and Liquid Nitrogen Recommended First Aid Electrostatic DischargeHandling Esds Components Safety SummaryIdentifying Esds Components Ground The InstrumentKeep Away From Live Circuits Safety SymbolsDo Not Operate In An Explosive Atmosphere Do Not Substitute Parts Or Modify InstrumentInspection and Unpacking Chapter InstallationRepackaging for Shipment Power and Ground Requirements Sensor Installation RecommendationsTwo-Lead Measurement Two-Lead Vs Four-Lead MeasurementsFour-Lead Measurement Connecting Leads To The Sensor Sensor MountingMeasurement Errors Due To AC Noise J1 Input Sensor Input ConnectionsTerminal Description Sensor Curve Definition Rack MountingHole Sizes Model CYD208-DIN Rack MountingInitial Power UP Sequence Power UP ErrorsThis Page Intentionally Left Blank Installation Chapter Operation Units KEYSetting Dwell Times Model CYD208 Only Alarm SetpointScan Mode Model CYD208 Only Alarm OperationAlarm Fix Function Model CYD208 Only Latched And Unlatched AlarmsSoftcal Compensations SoftCal Calibration Procedure Verifying SoftCal Operation Erasing SoftCal CompensationsOperation Serial Interface Connections Chapter Remote OperationSerial Interface Serial I/O RJ-11 Connector Pin Definitions J2 Serial I/OSerial Interface Operation Sample Basic ProgramInput Serial Interface Command SummarySample Quick Basic 4.0 Program ReturnedInput Lxxx.x Returned Nothing Input F0x Returned NothingInput Hxxx.x Returned Nothing Input R Returned NothingInput YCx Returned Nothing Switch ID and Alarm DataHigh or Low Parameter H = high alarm, L = low alarm End Scanning Model CYD208 OnlyCurrent channel,sign,sensor reading,units, alarm statusCRLF Sign,sensor reading,units,alarm status CrlfScan Status Model CYD208 Only This Page Intentionally Left Blank Remote Operation Chapter Service Model CYD201 Rear Panel ConnectionsModel CYD208 Rear Panel Connections Model CYD208 Rear Panel ConnectionsError Code Troubleshooting General MaintenanceFuse Replacement Line Voltage ConfigurationRecalibration Current Source CalibrationModel CYD201 Model CYD208 2 A/D Converter Calibration Serial Interface Cable and AdaptersModel CYD200-B RJ-11 to DE-9 Adapter Wiring Details Page Chapter Options and Accessories Accessories Model Description of AccessoryModel CYD201/CYD208 Wires Lsci P/N Description of Cable Model Description of AccessoryDIN Series DT-450 Model CYD201/CYD208 Sensors Sensor no Description of SensorSeries DT-420 Series CY-7Options and Accessories Appendix a Curve Tables A1.0 GeneralTable A-2. Curve 1 DT-500DI-8A Voltage-Temp. Characteristics Table A-3. Curve 2 DT-500DRC-D Voltage-Temp. Characteristics 6591 18.0 Table A-5. Curve 4 CTI Diode Voltage-Temp. Characteristics Table A-6. Curve 5 DT-500DI-8C Voltage-Temp. Characteristics Table A-7. Curve 6 CY-7 Voltage-Temp. Characteristics 305.0 50689 Page Page PRESSURE/STRAIN TemperatureFlow