ACC Automation: PLC & Industrial Control Learning
Practical Tips and Techniques
We will now look at communication between the Productivity 1000 PLC (Modbus TCP Server) and AdvancedHMI (Modbus TCP Client). Advanced HMI is a powerful, adaptable HMI/SCADA (Supervisory Control and Data Acquisition) development package that takes advantage of Visual Studio. There is no coding required and you can simply drag and drop items onto the page. … Read more
Firmware is usually PLC operating system code that is written into a read-only memory. The BIOS (Basic Input Output System) of a PC (personal computer) is a good example of firmware. It provides a low-level interface between the hardware and software. The firmware for the productivity series of PLCs must be downloaded separately from the … Read more
The productivity series of PLCs has a built in data logger. This easy data logger will log up to 64 tag values on a USB (Micro SD) storage device connected to the CPU. The logs will be stored in CSV (Comma Separated Values) file format. Logging can be triggered by the rising edge transition of … Read more
The program control method and instructions will allow us to specify what parts of the logic get solved and when this happens. This will control how the PLC will scan and solve your logic in your program using a synchronous PLC Scan. Understanding the PLC program scan will explain the synchronous and asynchronous program scanning. … Read more
An array is a storage area for a group of common data type tags. They usually have some relationship with each other and need to be manipulated as a group. Previously we defined an array and use this in an indirect addressing program. It sequenced bits in an output card indirectly. We then looked at … Read more
An array is a storage area for a group of common data type tags. They usually have some relationship to each other and need to be manipulated as a group. Last time we defined an array and use this in an indirect addressing program. It sequenced bits in an output card indirectly. In this second … Read more
An array is a storage area for a group of common data type tags. They usually have some relationship with each other and need to be manipulated as a group. We can use arrays for motion control, recipe management, sequencing (indirect addressing), math, etc. The Productivity 1000 Series PLC uses arrays that are programmed using … Read more
Data handling instructions are used to perform movement and manipulations of the memory in the programmable logic controller. The Productivity 1000 Series PLC has fifteen different data handling instructions that can be used in a wide variety of applications. In this first part we will be looking at the following instructions: Absolute Encoder (ABSE) – … Read more
Just about every programmable logic controller (PLC) program will include a timer instruction. The Productivity 1000 Series PLC has several different timer instructions for your program. We discussed the timed coil (TMC) and flasher coil (FLS) last time as part of the contacts and coil discussion. (Contact and Coil Instructions – Video) We will now … Read more
Contact and coil instructions are in every PLC program. The Productivity Suite Software consists of more than 82 instructions divided into 13 categories for the PLC. Contacts and Coils are two of the categories of instructions. Contact instructions include NO / NC, NO Edge / NC Edge and Compare. Coil instructions include Out, Set, Reset, … Read more