classicladder9

Usage

Overview

This component consist of a realtime part and a non-realtime part. The non-realtime part loads the programmable ladder description, while the realtime part provides the pins. The file name of the configuration can be changed using an argument to the non-realtime part. By default the non-realtime part provides a graphical visualisation of the loaded ladder, which can be disabled using the '--nogui' option to the non-realtime part.

These pins and parameters are created by the realtime classicladder_rt module. Each period (minimum 1000000 ns), ClassicLadder reads the inputs, evaluates the ladder logic defined in the GUI, and then writes the outputs.

Pins

classicladder.0.in-NN IN bit

These bit signal pins map to %INN variables in ClassicLadder.

classicladder.0.out-NN OUT bit

These bit signal pins map to %QNN variables in ClassicLadder. Output from ClassicLadder.

classicladder.0.s32in-NN IN s32

Integer input from ClassicLadder. These s32 signal pins map to %IWNN variables in ClassicLadder.

classicladder.0.s32out-NN OUT s32

Integer output from ClassicLadder. These s32 signal pins map to %QWNN variables in ClassicLadder.

classicladder.0.floatin-NN IN float

Integer input from ClassicLadder. These float signal pins map to %IFNN variables in ClassicLadder. These are truncated to S32 values internally. eg 7.5 will be 7.

classicladder.0.floatout-NN OUT float

Float output from ClassicLadder. These float signal pins map to %QFNN variables in ClassicLadder.

classicladder.0.hide_gui IN bit

This bit pin hides the ClassicLadder window, while still having the non-realtime code run. This is usually desirable when modbus is used, as modbus requires the non-realtime code to run.

Parameters

Functions

classicladder.0.refresh FP

The rung update rate. Add this to the servo thread. You can added it to a faster thread but it. Will update no faster than once every 1 millisecond (1000000 ns).