7 RS-232COMMUNICATIONS | Teledyne 300M specification

7 RS-232 COMMUNICATIONS

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A

7 RS-232 COMMUNICATIONS

The Model 300M features a powerful RS-232 interface that is used both for reporting test results and for controlling the analyzer from a host computer. Because of the dual nature of the RS-232 interface, the message format has been carefully designed to accommodate both printers and host computers.

Setup from the Front Panel

There are 2 additional RS-232 setups that can be done via the front panel.

1.Set the Instrument ID number by SETUP-MORE-COMM-ID, and enter a 4 digit number from 0000-9999. This ID number is part of every message transmitted from the port.

2.Set the RS-232 mode bit field in the VARS menu. To get to the variable press, SETUP- MORE-VARS-ENTR and scroll to RS232_MODE, then press EDIT. The possible values are:

Table 7-1: RS-232 Port Setup - Front Panel

Decimal Value	Description
1	Turns on quiet mode (messages suppressed)

2	Places analyzer in computer mode (no echo of chars)

4	Enables Security Features (Logon, Logoff)

8	Enables RS-232 menus display on M300M front panel display

16	Enables alternate protocol and setup menu

32	Enables multi-drop support for RTS

NOTE

To enter the correct value, add the decimal values of the features you want to enable. For example if logon and front panel RS-232 menus were desired the value entered would be 4 + 8 = 12.

All message outputs from the Model 300M have the following format:

X DDD:HH:MM IIII MESSAGE<CRLF>

The "X" is a character indicating the message type (see Table 7-2).

7-1

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Teledyne 300M instruction manual 7 RS-232COMMUNICATIONS, 1 RS-232Port Setup - Front Panel

Contents

04033 T-API 6565 NANCY RIDGE DRIVE SAN DIEGO, CATOLL-FREE FAX TEL MODEL 300M CARBON MONOXIDE ANALYZER The analyzer should only be used for the purpose SAFETY MESSAGESand in the manner described in this manual VIII TABLE OF CONTENTSLIST OF FIGURES LIST OF TABLES 6 HANDLING WARNINGS 3 PERFORMANCE TESTING4 SETUP MODE 5 DIAGNOSTICS 10-1 9 ADJUSTMENTS10 TROUBLESHOOTING 8 CALIBRATION 232 INTERFACE 11 ROUTINE MAINTENANCE12 SPARE PARTS LISTS 12-1 LIST OF FIGURES viii LIST OF TABLES 1.1 Preface 1.2 WarrantyWARRANTY POLICY 02024c 1 INTRODUCTION TERMS AND CONDITIONS 1.3 Principle of Operation Figure 1-1 Pneumatic Diagram 1.4 Specifications suitable vent outside the analyzer area 1.5 Installation and OverviewLeak check all fittings with soap solution lift and carry the Model 300M Power plug must have ground lug Page Figure 1-2 Carbon Monoxide Analyzer 1-10 1.6.3 Status Outputs Optional 1.6.1 Electrical Connections1.6 Electrical and Pneumatic Connections 1.6.2 Remote Contact Closures Zero/Span Inputs 1-12 1.6.4 RS-2321.6.5 Pneumatic System Table 1-1 Status Outputs sample gas connections 1.6.6 Sample Gas Connection1.6.7 Zero/Span Valve Connections 1.6.8 Exhaust Connections 1-14 Figure 1-4 Rear Panel Pneumatic Connections 1-15 1.7 Operation Verification Option Installed Table 1-2 Final Test and Calibration Values1-16 Factory Installed Options 1-17 1.8 Options1.8.1 Rack Mount With Slides 1.8.2 Span Valve 1-18 INTENTIONALLY BLANK 2.1.1 CO Readout 2.1 Key Features2.1.3 E2ROM Backup Of Software Configuration 2 OPERATION 2.1.6 RS-232Interface 2.1.7 Password ProtectionTable 2-1 Password Levels 2.1.5 Data Acquisition DAS 2.2.1 Front Panel Display 2.2 Front Panel Figure 2-1 Model 300M Front Panel Mode Table 2-2 System ModesMeaning Test Message Table 2-3 Test MeasurementsMeaning Table 2-4 Warning Messages 2.2.2 Programmable Push Buttons Figure 2-2 Illustration of Normal Display 2.2.3 Status LED’s State Table 2-5 Status LED’sMeaning INTENTIONALLY BLANK 2-10 span gas into the analyzer 3 PERFORMANCE TESTING3.1 Manual Zero/Span Check 3.1.1 Zero Check 3.1.2 Span Check 3.1.3 Dual Range Calibration 3.3 Zero/Span Valves Option 3.2 Span Valve Option 3.4 Automatic Zero/Span Check compute the carbon monoxide reading see Section 4.3 and 4.4 for setting present timeThe programmed start time must be a minimum of 5 minutes later than the present timePage Table 3-1 Calibration Controls to be established least 3-10 3.7 Remote Zero/Span Check or Adjustment RS-2323.8 Power-OnHold Off 3.9 Hold Off 4.1 Setup Mode Operation 4 SETUP MODE 4.4 Setting the Date 4.3Setting the Time-of-Day4.5 Adjusting the Clock Speed 4.6.3 Auto Range Mode AUTO 4.6 Setting the CO Concentration Range4.6.1 Single Range Mode SNGL 4.6.2 Dual Range Mode DUAL 4.10 Disabling the Calibration Password 4.7 Setting the Analog Output Offset4.8 Setting the RS-232Baud Rate 4.9 Setting the Analyzer I.D 4.11.1 Data Channels 4.11 Data Acquisition System DAS 4.12 Software Configuration 4.13.1 Summary of Setup Functions 4.13 Gas Alarms Function Table 4-1 Setup FunctionsDefault Button Sequence Function Table 4-1 Setup Functions ContinuedDefault Button Sequence INTENTIONALLY BLANK 4-10 5.1 Test Measurements 5 DIAGNOSTICS Table 5-1 Diagnostic Tests 5.2 Diagnostic Tests Table 5-2 I/O Signals 5.2.1 Signal I/Otable continued Control Table 5-2 I/O Signals ContinuedSignal table continued Control Table 5-2 I/O Signals ContinuedSignal table continued 5.2.3 Electric Test 5.2.2 Analog Output TestTable 5-2 I/O Signals Continued Table 5-3 M300M Variables 5.3 M300M Internal Variables INTENTIONALLY BLANK 6 HANDLING WARNINGS INTENTIONALLY BLANK 7 RS-232COMMUNICATIONS Table 7-1 RS-232Port Setup - Front Panel Table 7-2 RS-232Message Types 7.1 DAS ReportingPage 7.2 Warnings Command Table 7-3 RS-232Warning Message Clear CommandsWarning Message Cleared Table 7-4 Status Reports 7.3 Status/Control when the analyzer is in the sample mode Table 7-5 Control Commands the analyzer is in sample mode 7.4 DiagnosticsTable 7-6 Diagnostic Commands Table 7-7 Diagnostic Reports 7.5 Test Measurements Test Measurement Table 7-8 Test Measurement Request Commands7-10 Command 7-11 7.6 Viewing and Modifying Variables 7-12 Table 7-9 RS-232Variable Names 8.1 Required Equipment and Gas Standards 8 CALIBRATION Figure 8-2 Inlet Venting Recommendations Figure 8-1 Gas Generation System Qv × L = Qa × D 8.2 Multi-PointCalibration 8.2.1Procedure Page Page 8.3 Zero/Span Checking INTENTIONALLY BLANK 9.1 Power Supply Board Adjustment 9 ADJUSTMENTS9.1.1 Box Temperature Limits Figure 9-1:M300M Electrical Block Diagram the value on the voltmeter will remain constant 9.2 A/D - D/A Calibration ProcedurePage To adjust analog recorder offset, see Section 9.3 Dark Current Signal Adjust Procedure9.4 Output Voltage Range Changes 9.5 Flow Readout Adjustment 9.7 CPU 9.6 DC Power Supply INTENTIONALLY BLANK 10.1 Overview 10 TROUBLESHOOTING10-1 10-2 10.2.1 Checking the Power Sub-Systems 10-3 10.3 Troubleshooting Using Warning Messages10.2.2 Checking the CPU and Display 10.2.3Checking the Keyboard Meaning Table 10-1 Warning Messages10-4 Warning Message 10-5 10.4 Troubleshooting Using Test Function Values Meaning Table 10-2 Test Function Values10-6 Test Function 10.5.3Slow Response to Changes in Concentration 10.5 Troubleshooting Dynamic Problems10.5.1Noisy or Unstable Readings at Zero 10.5.2Noisy, Unstable, or Non-LinearSpan Readings 10-8 10.6.1 Troubleshooting Flow Problems10.5.5Cannot Zero or Cannot Dynamic Zero 10.5.6Cannot Span or Cannot Dynamic Span High Flow Hazardous voltages present - use cautionFlow is zero Low Flow Gas Filter Wheel Temperature 10.6.2 Troubleshooting Temperature ProblemsSample Temperature Optical Bench Temperature 10-11 10.6.3 Checking the V/F CardHazardous voltages present - use caution 10-12 Table 10-3 V/F Board Jumpers - Factory Settings 10.6.3.2 Digital to Analog Converters 10.6.3.1 Analog Inputs10-13 10.6.3.3 Digital I/O Lines 10.6.4 Checking the DC Power Supply Board10-14 10-15 10.6.5 Checking the Synchronous Demodulator Board 10-16 10.6.6 Checking the Opto InterrupterFigure 10-1 Opto Pickup Waveform Figure 10-2 Detector Waveform 10-17 10.6.7 Flow/Pressure Sensor 10-18 10.7 Warranty/Repair Questionnaire 11-1 11 ROUTINE MAINTENANCE11.1 Model 300M Maintenance Schedule Table 11-1 Maintenance Schedule Do not exceed 15 PSI of pressure 11.2Replacement of Sample Filter11.3.1 Using a Leak Checker 11.3Leak Checking Use only bubbles, not liquid the solution may enter and contaminate the cell11.3.2 Leak Self Test vacuum. This may cause damage to the analyzer INTENTIONALLY BLANK 11-4 12.1 Spare parts for CE Mark units 12 SPARE PARTS LISTS12-1 12-2 12.2 Model 300M Expendables kit12.3 Model 300M Spare parts kit for one unit Includes 12-3 12.4 Model 300M Level 1 parts kit for ten unitsIncludes 12-4 ConnectorsSignal Cables & Adapters come in 4 general types 12-5 Wiring ENABLE MODEM TRANSMISSION Troubleshooting the modem connection12-6 12-7 APPENDIX B Electrical drawing indexDrawing Number Title