RPisPLC

The Project Menu

The Project Menu

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This menu provides support for Check, Build a Diagram,...

Analog Instructions

More Instructions

More instructions

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Special instructions: Counters, Timers,...

The Instructions Menu

The Instructions Menu

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The Instructions Menu provides commands to add instructions plus many other commands specific to editing a Ladder Diagram. There are many commands available from this menu so some commands are grouped into a dialog box.

The Edit Menu

The Edit menu

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The Edit Menu provides standard edit commands (Undo/Redo, Cut, Copy, Paste and Delete) plus many other commands specific to editing the Ladder Diagram.

The File Menu

The File Menu

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The File Menu provides commands for creating, opening and saving a Ladder Diagram project.

  1.  New
  2.  Open
  3.  Save
  4.  Save As
  5.  Exit

 

Context Sensitive Menu

Popup Menu or Context Sensitive Menu

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Right Click over any selected instruction in the ladder diagram area will cause a pop-up menu to appear.
The presence of all these menu entries depends on the selected element(s), and other circumstances.

Right Click on an instruction.

The Status Bar

The status bar

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The status bar is at the very bottom of the Ladder Diagram Editor window and is used to display short advisory messages. In general such messages are self explanatory.

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RPisPLC Rapsberry Pi a simple PLC

Raspberry Pi (Model B + V1.2) simple PLC usable for home automation

An attempt to implement a simple PLC into a Raspberry Pi single-board computer.

Ladder Diagram running light example: ldr.hlp.running.light.mp4
RPIPLC HW running light example: rpi.running.light.mp4

Raspberry and I2C Interface

Raspberry and I2C Interface

For coupling the embedded Linux board to various types of devices, relays and sensors an expansion board is needed. Here you can find more information on how to do this.

I2C interface

With two wires it possible to address up to 1136 members. I2C is a synchronous bidirectional communication system that allows devices to transfer data using only two wires: a bidirectional data line (SDA) and a clock line (SCL).
Max clock rate: 400kHz.
The I/O board contains a PCA9555.

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