CTI 2550-A Installation and Operation Guide ix
TABLE OF CONTENTS
PREFACE ................................................................... v
USAGECONVENTIONS....................................................... vii
TABLEOFFIGURES ......................................................... xi
CHAPTER1. DESCRIPTION.................................................... 1
1.1FrontPanelDescription................................................. 1
1.1.1ActiveLED ................................................. 1
1.1.2 Input Connector for Channels 1-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2AsynchronousOperation ................................................ 2
1.3ImmediateI/O ........................................................ 2
1.4UnipolarorBipolarMode ............................................... 2
1.5VoltageorCurrentMode................................................ 2
1.6DigitalWordMap..................................................... 2
1.7AnalogtoDigitalConversion............................................. 4
1.7.1UnipolarModeConversion ...................................... 4
1.7.2BipolarModeConversion ....................................... 4
1.7.3ExampleConversion ........................................... 5
1.8EffectofOut-of-RangeInputSignals....................................... 5
1.8.1UnipolarMode ............................................... 6
1.8.2BipolarMode ................................................ 6
1.9UsinganInputwith20%Offset........................................... 8
1.9.1 Using the Module with 20% Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.10Resolution.......................................................... 9
CHAPTER2. INSTALLATION ................................................. 11
2.1PlanningtheInstallation ............................................... 11
2.1.1 Calculating the I/O Base Power Budget . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1.2InputSignalWiring .......................................... 11
2.2UnpackingtheModule................................................. 12
2.3ConfiguringtheModule................................................ 13
2.3.1 Selecting Voltage or Current Input Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.3.2SelectingVoltageRange ....................................... 14
2.3.3 Selecting Unipolar or Bipolar Input Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.3.4SelectingDigitalFiltering ...................................... 15
2.3.5SelectingOffsetScaling ....................................... 15
2.3.6 Selecting Advanced Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.3.7 Configuring DIP Switches to Report Hardware Configuration . . . . . . . . . . . 16
2.4InsertingtheModuleintotheI/OBase..................................... 16
