Ion modules – Multi-Tech Systems 7500 User Manual

Page 104

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Basics of ION Architecture

ION 7500 / ION 7600 User’s Guide

Page 104

Chapter 4 - Using ION Software

ION Modules

The ION module is the basic building block of the ION device’s operating
software. A module can be considered as a “function box”: it receives data from its
inputs, makes decisions based on the settings in its setup registers, and then makes
data available at its output registers. All functionality provided by an ION device
can be considered in terms of its modules and the linkages between them.

Modules are linked together to create powerful functions. For example, the
framework below consists of four modules that, when combined, trigger a
waveform recording in response to an over-voltage condition.

Module Linking Restrictions

The maximum number of modules that can be linked in a row is 25. This is referred
to as the framework’s depth. Modules that branch off or branch into the chain do
not affect the depth, and there is no restriction on the number of branches you can
have in a framework.

Another restriction concerns “circular” linking of modules. You cannot link a
module’s output register to its own input or to the input of any module that
precedes it in the chain. This protects you from creating infinite loops that can
waste system resources.

The one exception to this rule is the Feedback module, which makes circular
linkages possible (refer to the online ION Programmer’s Reference).

ION Module

Output 1

Output 2

Input 1

Input 2

OUTPUT REGISTERS

hold the result of the

module’s operation–

this data is available to

other ION modules.

SETUP REGISTERS

control how the module

processes data

INPUT REGISTERS

are connected to the output

registers of other modules;

data flows into them.

Voltage on phase A

is measured

Waveform is recorded

and stored in the log file

Setpoint goes ON when

Vln a exceeds a limit and

outputs a trigger pulse

One-Shot Timer waits for

a specified period then

outputs a trigger pulse

Power Meter

Module

Vln a

Setpoint

Module

Trigger

One-Shot Timer

Module

Trigger

Waveform Recorder

Module

Waveform log

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