Automation Direct DirectLogic Series Application Note - Page 2

Browse online or download pdf Application Note for Controller Automation Direct DirectLogic Series. Automation Direct DirectLogic Series 5 pages. Plc

Print Page

Figure 1

Flowchart example using standard RLL programming

Figure 2

Flowchart example using stage programming

Stages are not like subroutines. They are scanned just as if they are regular ladder logic. The closest

thing to a stage is a Master Control Relay. If the MCR is on, then the power rail is processed. If the MCR

is off, then the power rail is skipped. Stages operate in much the same fashion. If the stage is enabled,

the power rail has power and the logic is executed. If it is disabled, then all logic within that stage is

skipped (not processed) because the power rail has no power.

There are three main behaviors to Stage programming:

1) When the stage bit is on, the

corresponding stage is scanned and logic within that stage is evaluated and processed.

THIS INFORMATION PROVIDED BY AUTOMATIONDIRECT.COM TECHNICAL SUPPORT

IS PROVIDED "AS IS" WITHOUT A GUARANTEE OF ANY KIND.

These documents are provided by our technical support department to assist others. We do not guarantee

that the data is suitable for your particular application, nor do we assume any responsibility for them in

your application.

Page 2 of 5