Diagnostic Logic Block (Dlb) Example - GE PACSystems RX7i Cpu Programmer's Reference Manual

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Chapter 9. Diagnostics

Diagnostic Logic Block (DLB) Example

In this example, a block of LD logic is downloaded to the controller and executed.

The basic steps for using a sample DLB in the controller are as follows:

1) Create an LD block named MonitorScan and place it in the Toolchest. For information on working

with the Toolchest, refer to the online help.

The logic in the DLB block measures Controller scan time. It calculates the Minimum (minTime),

Maximum (maxTime), and Average (avgTime) time between DLB block executions. When the DLB

is set to Sweep Mode, these values should be close to the Controller Sweep time.

Logic for the MonitorScan Block

PACSystems* RX7i, RX3i and RSTi-EP CPU Programmer's Reference Manual

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