Sensoray 518 User Manual
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Table of Contents
BASICS: Read Firmware Version. . 32
Limited Warranty . . 3 Read Product I.D. . . 33
Special Handling Instructions . . 3 Set Coefficients. . 34, 35
Chapter 2: Introduction . . 4 Calibrate 518. . 36
Functional Description . . 4 Sensor Tables. . 37
Specifications . . 5, 6 Back Compatibility. . 38
Chapter 3: Hardware Configuration . . 7 Chapter 5: Sensor Connections. . 39
Interrupts . . 7 RTD’s and Resistors. . 39, 40
Port Mapping . . 7, 8 Thermocouple and DV Voltage. . 41
Hardware Filters. . 9 Thermistor/Custom Resistive Sensors. . 42
Chapter 4: Programming . . 10 Strain and Pressure Gages. . 42
Programming Model . . 10 4 to 20 mA Current Loops. . 43
Status Register . . 11 Chapter 6: Sensor Specifics
Control Register . . 12 User-defined Resistive Sensors. . 44
Sample Low-level Drivers . . 13 Application example. . 44, 45
Commands . . 16 Thermocouples. . 45
Declare Channel Sensor . . 17 Verifying Thermocouple Calibration. . 46,47
Set Filter Time Constant . . 18 Strain and Pressure Gages. . 47
Read Board Temperature . . 19 Measurement Resolution. . 47, 48
Read Channel Data . . 20 Calibration. . 48, 49
Read Data From All Channels . . 21 Chapter 7: Theory of Operation. . 50
Set Channel Alarm Limits . . 22 Software. . 50
Set Open Sensor Data Values . . 23 Scanner. . 50
Read Alarm Flags . . 24 Post-processor. . 50
Set Gage Zero . . 25 Command Processor. . 51
Set Gage Span . . 26 Hardware. . 51
Tare Gage . . 27 Reference Section. . 51
Read Gage Calibration . . 28 Measurement Section. . 51, 52
Set Gage Calibration . . 29 Excitation Section. . 52
High Speed Mode . . 30 Timing. . 52
Low Power Standby . . 31 Scan Rate. . 52, 53
Communication Latency. . 53, 54
Processor Speed. . 54
Chapter 8: Command Summary. . 55, 56