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TABLE OF CONTENTS
SECTION
TOPIC
PAGE
Section 1.0 Introduction ........................................................................................................3
Section 2.0 Cautions ..............................................................................................................3
Section 3.0 Theory of Operation ...........................................................................................3
Section 4.0 Unpacking ...........................................................................................................4
Section 4.1 DXD Transducer(s) ..............................................................................................4
Section 4.2 Certificate of Calibration .....................................................................................4
Section 4.3 Utility Software ...................................................................................................4
Section 4.4 Accessories (RS-232 Configurations only) .........................................................4
Figure 1. Modular Power Supply with RJ11/4 Connector ..................................4
Figure 2. Serial Port Adapter Assembly ..............................................................5
Section 4.4.3 25 to 9 Pin Adapter ..........................................................................................5
Section 4.4.4 25 Foot Cable ..................................................................................................5
Section 4.4.5 Five-Port Expander Module .............................................................................5
Section 4.4.6 Limitations of the DXD w/USB option .............................................................6
Section 5.0 Installation ...........................................................................................................6
Section 5.1 Pressure Connections .........................................................................................6
Section 5.2 System Wiring ....................................................................................................6
Section 5.2.1 RS-232 Cables .................................................................................................6
Section 5.2.2 RS-485 Cables .................................................................................................6
Section 5.2.3 USB Cables .....................................................................................................6
Section 5.2.4 Cable Length and Transmission Speed (RS-232 & RS-485) ...........................7
Section 5.2.5 Pin Functions and Cable Fabrication for RS-232 Compatible Systems ..........7
Section 5.3 Installation Wiring for RS-232 Systems with Accessory Kit ...............................7
Section 5.3.1. Pin Functions and Cable Fabrication for RS-232 Compatible Systems .........7
Table 1. Switchcraft™ EN3 Pin Assignments for RS-232 Configuration ............8
Table 2. ITT Cannon™ KPT03 Pin Assignments for RS-232 Configuration .......8
Table 3. RJ-11 Connector Functions for RS-232 Systems .................................8
Section 5.4 Wiring Installation for RS-485 Systems ........................................................ 9-11
Section 5.4.1 Pin Functions and Cable Fabrication for RS-485 Compatible Systems ........12
Table 4. Switchcraft™ EN3 Pin Assignments for RS-485 Configuration ..........10
Table 5. ITT Cannon™ KPT03 Pin Assignments for RS-485 Operation ...........11
Figure 3. USB cable assembly ..........................................................................12
Section 5.5 Wiring System for USB applications.................................................................12
Section 6.0 Installing and Running Utility Software .............................................................14
Section 7.0 Using HyperTerminal™ (or other Terminal Emulators) with the DXD ................14
Section 7.1 Configuring HyperTerminal™ ...................................................................... 14-15
Section 7.2 Basic Communications with the DXD ..............................................................15
Section 7.2.1 Communication and Command Basics .........................................................15
Section 7.3 Launching the Previously Configured HyperTerminal Application ....................15
Section 7.4 Talking to the DXD with HyperTermnal™ ..........................................................15
Section 7.4.1 Determine and Set the Current Address .................................................. 15-16
Section 7.4.2 Determine and Set Baud Rate .......................................................................16
Section 7.4.3 Determine the Pressure Type .........................................................................17
Section 7.4.4 Determine the Full Scale Pressure Range .....................................................17
Section 7.4.5 Get a Pressure Reading .................................................................................17
Section 7.4.6 Get the Heise Label .......................................................................................17
Section 7.4.7 Get and Change the Current User Label .......................................................17
Section 7.4.8 Get and Change the Current User Tare Value ................................................17
Section 8.0 Field Calibration ................................................................................................18
Section 8.1 Zero Adjustment ...............................................................................................18
Section 8.2 Span Adjustment ..............................................................................................18
Section 9.0 Command Library Command Specification ............................................... 18-19
Section 9.1 Communication Settings ..................................................................................19
Section 9.2 Communication Protocol ..................................................................................19
Section 9.2.1 Read Commands ...........................................................................................19
Section 9.2.2 Write Commands ...........................................................................................19
Section 9.3 Command Library Mnemonics .........................................................................19
Section 10.0 DXD Product Specifications ..................................................................... 20-21