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Sensoray 417 User Manual

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Chapter

Table of Contents

Chapter 1: Basics . . 1

Limited Warranty . . 1

Special Handling Instructions . . 1

Chapter 2: Introduction . . 2

Functional Description . . 2

Block Diagram . . 2

Specifications . . 3

Chapter 3: Hardware Configuration . . 5

Base Address . . 5

Option Shunt Table . . 5
Example . . 6
Application Worksheet . . 6

Chapter 4: Programming . . 7

Programming Model . . 7

Status Register . . 7
Control Register . . 8
Reset State . . 8

Sample Drivers . . 9

Visual Basic Drivers . . 9
C Language Drivers . . 11
80x86 Assembly Language Drivers . . 12

Commands . . 13

Definitions . . 13
Command Set . . 13

Set Sensor Type . . 14
Set Filter . . 15
Read Reference . . 16
Read Channel . . 17
Read Channel Group . . 18
Set Limits . . 19
Set Fail Mode . . 20
Read Alarms . . 21
50Hz Reject Mode . . 22
High Speed Mode . . 23
Read Version . . 24
Read Identifier . . 25
Calibrate . . 26

Sensor Table . . 27

Chapter 5: Sensor Connections . . 29

Connectors . . 29

Termination Boards . . 30

Thermocouples . . 30

DC Voltage . . 30

4-to-20 mA Current Loops . . 31

Solving Noise Problems . . 31

Chapter 6: Thermocouples . . 33

Overview . . 33

Reference Sensor . . 33

Ensuring Accuracy . . 33

Chapter 7: Theory of Operation . . 35

Software . . 35

Scanner . . 35
Post-processor . . 35
Command Processor . . 35

Hardware . . 36

Reference Standards . . 36
Signal Conditioning . . 36
Measurement Section . . 36

Timing . . 37

Scan Rate . . 37
Communication Latency . . 38
Processor Speed . . 38