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Horner XL4 PLC HMI Program Control Instructions
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Oct 15, 2022
We will now look at program control in the Horner XL4 all in one controller. PLC programs scan usually from left to right, top to bottom. The outputs from the previous rung are available for the next. This is the operation of a PLC. Program control instructions allow us to add or remove parts of our program during each scan of the controller. The Horner APG XL4 has subroutines which we can achieve this control. We will look at how to divide your main logic up and at how subroutines work.
This series on the Horner XL4 all-in-one controller (PLC) will go step by step through learning how to use this innovative unit.
More information can be obtained at our website. This includes all of the links mentioned in this video. https://accautomation.ca/horner-xl4-program-control-instructions
Previously we discussed the following on the Horner XL4:
System Hardware.
https://accautomation.ca/horner-xl4-system-hardware/
Installing the Software Cscape
https://accautomation.ca/horner-xl4-installing-the-software-cscape
Horner XL4 Cscape Software Setup
https://accautomation.ca/horner-xl4-cscape-software-setup
Horner XL4 Establishing Communication
https://accautomation.ca/horner-xl4-establishing-communication
Horner XL4 Numbering System and Addressing
https://accautomation.ca/horner-xl4-numbering-system-and-addressing
Horner XL4 User Interface
https://accautomation.ca/horner-xl4-user-interface
Horner XL4 Timers and Counters
https://accautomation.ca/horner-xl4-timers-and-counters
Compare and Move Instructions
https://accautomation.ca/horner-xl4-compare-and-move-instructions
Horner XL4 Math Instructions
https://accautomation.ca/horner-xl4-math-instructions
There are several reasons why we are using the Horner XL4 Controller. Here are just a few.
- Investment is low for the hardware and the software is free
- Standalone PLC with built-in I/O and HMI
- Communication ability - Ethernet Port, RS232, RS485 - support for protocols such as Modbus RTU, Modbus TCP, etc.
- Built-in data logging functions
- Ability to expand the system with a variety of modules
https://www.accautomation.ca
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