Omega Engineering OMB-NETSCAN 1500 User Manual Download

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NetScan User’s Manual,

11-11-98

C-1

Appendix C

Configuration Aspects for Programmers

Reference Note: If you are not familiar with programming you will probably gain more understanding of
the program-related portions of this appendix by first reviewing Appendix A, API Commands.

Reference Note: Hardware configuration is discussed in Chapter 7.

Contents

Memory Allocation ------------------------------------------------------------------------------------------------------- C-2

Measuring Modes --------------------------------------------------------------------------------------------------------- C-3

Overview----------------------------------------------------------------------------------------------------------------------------C-3
Normal Mode ----------------------------------------------------------------------------------------------------------------------C-4
High-Speed, Single-Channel Mode ---------------------------------------------------------------------------------------------C-5

Configuration Requirements ------------------------------------------------------------------------------------------- C-6

Channel Configuration -------------------------------------------------------------------------------------------------- C-7

CSN14/TC/P



Configuring Thermocouple Channels----------------------------------------------------------------------C-8

CSN14/LV/ (T, B, or S)



Configuring Low Volts Channels -------------------------------------------------------------C-8

CSN14/HV/S



Configuring High Volts Channels -------------------------------------------------------------------------C-9

Scan Configuration ------------------------------------------------------------------------------------------------------- C-9

Configuring a Scan ----------------------------------------------------------------------------------------------------------------C-9
Configuring the Scan Interval ---------------------------------------------------------------------------------------------------C-9

Acquisition Configuration---------------------------------------------------------------------------------------------- C-10

Introduction

-------------------------------------------------------------------------------------------------------------- C-10

Pre-Trigger State

-------------------------------------------------------------------------------------------------------------- C-11

Continuous, Gap-Free Acquisition with Two Timebases ------------------------------------------------------------------ C-11
Post-Trigger State -------------------------------------------------------------------------------------------------------------- -C-13
Post-Stop State ------------------------------------------------------------------------------------------------------------------ C-13

Trigger and Stop Events------------------------------------------------------------------------------------------------ C-13

Time Stamping (*T) ---------------------------------------------------------------------------------------------------- C-15

Alarm Stamping (A#) --------------------------------------------------------------------------------------------------- C-15

Digital Input Stamping (I#) -------------------------------------------------------------------------------------------- C-16

Acquisition Buffer, A Description ------------------------------------------------------------------------------------ C-18

Trigger Block Organization ------------------------------------------------------------------------------------------- C-18

Multiple Trigger Blocks ------------------------------------------------------------------------------------------------ C-20

Acquisition Buffer Interrogation ------------------------------------------------------------------------------------- C-21

Reading the Acquisition Buffer --------------------------------------------------------------------------------------- C-24

Configuring Alarms ----------------------------------------------------------------------------------------------------- C-26

Alarm Setpoints------------------------------------------------------------------------------------------------------------------ C-26
Digital alarm Outputs ----------------------------------------------------------------------------------------------------------- C-26
Setpoint Hysteresis -------------------------------------------------------------------------------------------------------------- C-26

Digital I/O Operation --------------------------------------------------------------------------------------------------- C-28