Overview Of The Hp E1415 Algorithmic Loop Controller; Operational Overview - HP VXI 75000 C Series User's And Scpi Programming Manual

Overview of the HP E1415 Algorithmic Loop Controller

Operational
Overview
Algorithmic?
56 Programming the HP E1415 for PID Control
• Creating and Loading Custom EU Conversion Tables . . . . . . . . . 103
• Compensating for System Offsets. . . . . . . . . . . . . . . . . . . . . . . . . 106
• Detecting Open Transducers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
• More On Auto Ranging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
• Settling Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
The first part of this chapter will provide an overview of the HP E1415's
operating model, and programming. This will help you understand the
affects of programming commands you will see in later examples and
detailed discussions.
This section describes how the HP E1415 gathers input data, executes an
algorithm and outputs control signals. Figure 3-1 shows a simplified
functional block diagram.
Figure 3-1. Simplified Functional Block Diagram
The HP E1415 is an algorithmic process loop controller. It can provide as
many as 32 single-input/single-output control loops in a single VXIbus
module. The term algorithmic indicates that the HP E1415 is a digital loop
controller. An internal Digital Signal Processor (DSP) executes program
Chapter 3