Teledyne 460H 2 Control Inputs, Description, Zero Input, Zero Calibration, Aux Input

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2.4.3 Control Inputs

There are 2 digital control inputs on the I/O connector; they are labeled ‘Zero Input’ and ‘Aux Input.’ The control inputs are used for remote control of the M460H by a device such as a PLC. These inputs are triggered by providing a contact closure or low impedance current path between the Input and the Gnd pin. This can be done by using a mechanical switch or isolated transistor type output from another device, such as a PLC. Never connect a voltage level output from another device to these contacts. The functions of the control inputs is summarized below in Table 2-2:

	Table 2-2 Control Inputs

Input	Description
Zero Input	Zero Calibration
Aux Input	Pressure Display

Zero Calibration Input:

The zero calibration input is used to initiate zero calibration from an external device. This input performs exactly the same function as the ‘Zero’ buttons on the front panel.

Pressure Display Input:

The pressure display input is used to display the pressure on the front panel. This input performs exactly the same function as the ‘Pressure’ buttons on the front panel.

P/N 03662D Teledyne API Model 460H O3 Monitor Operator Manual - Page 16

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Contents MODEL 460H NEMA OZONE MONITOR INSTRUCTION MANUALEMAIL api-sales@teledyne.com 03662 Rev. D 1/8/04SAFETY MESSAGES TABLE OF CONTENTS 2.0 INSTALLATION6.0 MAINTENANCE I. 0 INTRODUCTION6.2 CLEANING EXTERIOR SURFACES OF THE M460H 7.0 SENSOR AND SYSTEM TROUBLESHOOTINGAPPENDIX A - SERIAL PORT CONFIGURATION 6.3 DEGREE OF PROTECTIONFIGURES Figure 2-1 Mounting Hole LocationsPneumatic Connections Electrical ConnectionsTABLES Table 2-1 Digital Status Output PinsTable 2-3 Serial Port Pins Serial Port ConfigurationI.0 INTRODUCTION 1.1 Preface1.2 WARRANTY POLICY ADVANCED POLLUTION INSTRUMENTATION DIVISION02024c TERMS AND CONDITIONS1.3 Principle of Operation 1.4 Specifications 2.1 Mechanical Installation 2.0 InstallationFigure 2-1 Mounting Hole Locations 2.2 Pneumatic Connections Figure 2-2 Pneumatic Connections 2.3AC Power Connection 2.4 Electrical I/O Connections 2.4.1 Analog OutputFigure 2-3 Electrical Connections I/O CONNECTORTable 2-1 Digital Status Output Pins 2.4.2 Digital Status OutputsLabel Name2.4.3 Control Inputs Table 2-2 Control InputsInput DescriptionTable 2-3 Serial Port Pins 2.4.4 RS232/RS485 Serial Communications PortFigure 2-5 Typical RS232 and RS485 Connections RS2323.0 Startup 4.0 Operation 4.1 Front Panel Display4.1.1 O3 readout 4.1.2 Pressure Display4.2.1 Auto-Zero Installation 4.2.3 Auto Zero Error4.2 Auto-Zero Operation 4.2.2 Auto-Zero Function5.1 Serial Port Configuration 5.2 Command SyntaxTable 5-1 Serial Port Configuration addresscommanddata1,data2#checksumCR5.3 Command Summary Examples of valid Commands with no dataExamples of valid Commands with data Table 5-2 Serial Port Command Summary5.4 Command Reference 5.4.1 CAUTOSyntax Data Parameters Sent5.4.2 CZERO 5.4.3 DACSTEP addressO3CR 5.4.4 O3addresso3conc#checksumCR 5.4.5 SETADDR addressSETADDRnewaddressCR5.4.6 TDUMP 5.4.7 TLIST 5.4.8 VGET Allowable RangeIndex addressvarvalue#checksumCR1VLISTCR 5.4.9 VLIST#5 iirfilt = 0.4 #6 concunits = 5.4.10 VSET varindexis index number for internal VAR See VGET for index list newvalue6.0 Maintenance 6.2 Cleaning Exterior Surfaces of the M460HFilter Replacement Procedure 6.1 Replacing the gas filter element7.0 Sensor and System Troubleshooting 7.1 Status Output Summary7.2 Sensor OK Table 7-1 Digital Status Outputs7.4 Lamp Low 7.3 Invalid Reading7.5 Cell Dirty 7.6 Status Output Summary Table Table 7-2 Status Output Truth TableSensor InvalidFigure A-1 RS232/RS485 Jumpers Controller PCA#03492 Appendix A - Serial Port ConfigurationRS232RS485 Appendix B - Pneumatic Diagram