Omega Vehicle Security 1400 User Manual

ChartScan User’s Manual,

1-14-99

C-1

Appendix C

Registers, Data Formats, & Queries

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 and
Appendix D, ChartScan Program Examples.

Contents

Using the High/Low/Last (HLL) Registers--------------------------------------------------------------------------- C-2

What is Contained in the HLL Registers--------------------------------------------------------------------------------------- C-2
Accessing the HLL Registers---------------------------------------------------------------------------------------------------- C-2

Data Format (F) ----------------------------------------------------------------------------------------------------------- C-5

Data Input Formats---------------------------------------------------------------------------------------------------------------- C-5
Data Output Formats-------------------------------------------------------------------------------------------------------------- C-6
Engineering Units Data Format ------------------------------------------------------------------------------------------------- C-6
Binary Data Format --------------------------------------------------------------------------------------------------------------- C-8
Counts Data Format--------------------------------------------------------------------------------------------------------------- C-8

Configuring Power-Up State-------------------------------------------------------------------------------------------- C-9

Queries ---------------------------------------------------------------------------------------------------------------------C-10

Query (?) Commands ----------------------------------------------------------------------------------------------------------- C-10
U Status Commands ------------------------------------------------------------------------------------------------------------ C-11

Status, Event Reporting, and Mask Registers ----------------------------------------------------------------------C-11

Theory of Operation ------------------------------------------------------------------------------------------------------------ C-12
Calibration Status Register----------------------------------------------------------------------------------------------------- C-14
Error Source Register----------------------------------------------------------------------------------------------------------- C-14
Event Status Register ----------------------------------------------------------------------------------------------------------- C-14
Event Status Enable Register -------------------------------------------------------------------------------------------------- C-14
Status Byte Register ------------------------------------------------------------------------------------------------------------ C-15
Service Request Enable Register---------------------------------------------------------------------------------------------- C-16

IEEE 488 Serial Poll Response ----------------------------------------------------------------------------------------C-16

Using Status Reporting Registers -------------------------------------------------------------------------------------C-17

Trigger Latency ----------------------------------------------------------------------------------------------------------C-18

Trigger Overrun ---------------------------------------------------------------------------------------------------------C-18

Buffer Overrun -----------------------------------------------------------------------------------------------------------C-18

Buffer Overrun With One Trigger Block ------------------------------------------------------------------------------------ C-19
Buffer Overrun With Multiple Trigger Blocks------------------------------------------------------------------------------ C-19

Real Time Clock----------------------------------------------------------------------------------------------------------C-19

Open Thermocouple/Range Error Checking -----------------------------------------------------------------------C-19