All posts by garrys

C-More EA9 HMI Series Panel to PLC and PLC to Panel Settings

The C-More EA9 HMI (Human Machine Interface) Series Panel will communicate to the PLC directly through the tag database that we discovered in our first program. We were able to read and write individual bits in the PLC.

Panel to PLC communications is used to write information into the PLC; like current screen number displayed, good communications, pop-up keyboard, and current language number used in the HMI.

PLC to Panel communications is used by the PLC to control the HMI. Switch to screen number, beep, increment and decrement the Clock by one hour, clear alarm history, clear alarm count, start screen saver and select language are the items you can control in the HMI.

PLC Error is used to communicate internally in the HMI the PLC error state and PLC error code value.
We will be setting up and testing our PLC to Panel and Panel to PLC communications on our EA9 C-More. Let’s get started. Continue Reading!

Wiring Push Buttons and Selector Switch to Click PLC

A push button (pushbutton) is a simple human interface for controlling some aspect of a machine or process. The push button requires a force to push the button to change the electrical operation from off to on or vice versa. The condition of the output is usually momentarily. Some common everyday pushbuttons we use are keyboards keys.

A selector switch is also a mechanical device that will require a force to turn the electrical operation from off to on or vice versa. The selector switch usually locks into a position.

We will be wiring two illuminated pushbutton switches into our Click PLC. A selector switch will also be wired in. Let’s get started. Continue Reading!

Wiring Stack Light to Click PLC

Stack lights are usually modular stackable components that provide a visually illuminated and audible indication for machines, systems, and processes. They are usually located on top of equipment to provide this notification to personnel in the area.

Stack lights are also known as signal tower lights, indicator lights, warning lights, industrial signal lights, tower lights, and light towers.
We will be connecting a Patlite NPS-402-RYGB Super Slim stack light to our Click PLC.

These stack lights come in preassembled units in the most popular combinations of colours with ABS resin main bodies that offer superior impact and heat resistance; double-insulated construction enhances durability and safety. Interchangeable light modules require no rewiring. Let’s get started. Continue Reading!

C-More EA9 HMI Series Panel First Program

We will now put our first program into the C-More EA9 HMI Panel using the C-More programming software. The Do-More Designer Simulator will be used with a modified Start Stop Jog Circuit so we can use our HMI screen to monitor the output as well as control the inputs on the PLC.

Communications will be established to our C-More EA9-T10CL unit and the firmware will be updated. We will then develop our control for our PLC ladder logic circuit.

The PLC logic for our circuit can be found on our post: How to Make a Start / Stop / Jog Circuit in a PLC. The YouTube video can be seen here.
Our C-More EA9 HMI Panel will be communicating to the PLC simulator via Ethernet with the Modbus TCP protocol. Let’s get started. Continue Reading!

C-More EA9 HMI Series Panel System Setup Screens

The C-more touch panels include a series of built-in System Setup Screens that allow you to view detailed information about the panel; adjust certain features; configure communications; test various functions of the touch panel; backup & restore firmware, a recipe, log, and project memory; clear memory and reset all values and conditions back to the original factory defaults.

Information, Setting, Test Menu and Memory make up the four Main Menu setup screens.
Information – The information tabs display details about the touch panel model; the panel’s name; version information for the hardware, boot loader, and firmware; clock source, and beeper status. Other tabs display details on the panel’s internal memory and the status of any external memory devices. Communication port details are available in this area, as well as an error log to help in troubleshooting the system.
Setting – This is the area for making adjustments to the internal clock, adjusting the brightness of the display, setting the IP address adjusting (calibrating) the touch panel, enabling or disabling the internal beep, and enabling or disabling a mouse pointer.
Test Menu – This menu will allow you to test the touch panel, test the display, test the user LED, test the communication ports, and test both the internal beeper or the audio line output. If a speaker with an amplifier is connected, a WAV sound file is a system provided for the audio line output test.
Memory – The Memory menu allows you to either backup or restores your project, log data, recipe data and/or system memory. Selections can be made to backup to optional SD card memory or USB pen drive memory. The menu selections also give you the ability to clear the memory, and there is also a selection to reset all of the touch panel settings back to the original factory defaults.
We will be reviewing these system screens of the C-More HMI Panel. Let’s get started. Continue Reading!

Productivity 1000 Series PLC PID Ramp Soak Instruction

PID Ramp Soak Instruction
The purpose of a ramp soak instruction is to make gradual, controlled changes in temperature (Ramp), followed by a temperature hold (Soak) period.
We will be using our Proportional-Integral-Derivative PID Instruction that we looked at last time to apply the ramp/soak instruction.

Using the immersion heater in a cup of water to keep the temperature at a constant value, we will be adjusting the profile of the temperature as we increase the set point (Ramp) and hold that set point for a predetermined time. (Soak)

We will be modifying our existing program from our PID loop instruction. Let’s get started. Continue Reading!

Productivity 1000 Series PLC PID Instruction

PID Loop (PID) Instruction (Auto Tuning)
A Proportional-Integral-Derivative algorithm is a generic Control Loop feedback formula widely used in industrial control systems. A PID algorithm attempts to correct the Error between a measured process variable and the desired setpoint by calculating and then outputting a corrective action that can adjust the process accordingly and rapidly, to keep the Error to a minimum.

The following links will explain the PID instruction.
We will be using an immersion heater in a cup of water to keep the temperature at a constant value. Using the Productivity Suite software we will perform an autotune on our PID instruction.

Our immersion heater will be controlled through a relay using time proportional control from our PID output. Let’s get started. Continue Reading!

C-More EA9 HMI Series Panel Installing the Software

The C-more Programming Software is a free download from Automation Direct. The software can run in DEMO (demonstration) mode or a key can be purchased to unlock this software. This powerful C-more Touch Panel programming software makes HMI touch screen panel setup and programming quick and simple. Simply drag and drop the objects from the object bar onto the screen construction area. A complete set of control panel objects include pushbuttons, selector switches, pilot lights, text and numeric data displays, bar graph displays, static and dynamic bitmapped images and more. Configure your PLC tags and click on the objects you want to use. A built-in simulator will allow you to review your work on the computer before downloading the project.

We will be installing the C-more Programming Software onto our PC (computer). This will be the DEMO mode of the program. The DEMO mode will do the following:
– You CAN download our sample projects and explore the capabilities of C-more.
– You CAN use the Simulator to test your project on the PC and see how the Simulator can save you hours of programming time.
– You CAN create your own objects, and save them in your object library.
– You CAN explore the online help, and find answers to many questions that might not be covered here on the website.
The full package will allow you to save your projects, download them to a panel and includes the full symbol factory library with over 4000 symbols.
Let’s get started. Continue Reading!

C-More EA9 HMI Series Panel System Hardware

Human-machine interfaces (HMI) are made to display and control operations for our automation solution. Information is displayed in a graphics format. (Graphical User Interface – GUI) The HMI is usually part of the SCADA (Supervisory Control and Data Acquisition) system.
Communication from the HMI to the control is usually done through a serial (RS232 / RS485 / RS422) or Ethernet (RJ45) method with different protocols depending on the manufacturer of the control. The automation control device is not limited to a PLC. (Programmable Logic Controller) You can communicate also to drives, temperature process controllers, etc. The HMI usually will include several different protocols and port configurations to maximize the amount of control product that it will be able to communicate.

C-More Operator Panels come in 6”, 7” wide, 10”, 10” wide, 12” or 15” models. They are programmed using the EA9-PGMSW programming software through either the USB or Ethernet cable. A voltage supply of 12-24 VDC is required for the panel. The optional C-More AC Power Adapter EA-AC can also be used to supply this voltage.
We will be looking at one of the newest members of the C-More Panel HMI devices from Automation Direct. This is the EA9-T10CL. This ten-inch colour TFT LCD screen offers great features that we will be exploring as we review this product. Let’s get started. Continue Reading!