Safety controllers monitor over voltage / short circuit protection, redundant relays, and positive guided contacts to provide a level of fail-safe operation for applications. The modular MOSAIC safety controller is an expandable, cost-effective choice over standalone safety relays. Especially as the required number of relays/channels increases. It will also reduce the wiring of your safety circuits.
MOSAIC stands for MOdular SAfey Integrated Controller. We will be looking at the system hardware of the MOSAIC and un-boxing our unit. We will also apply power to the system. Let’s get started. Continue Reading!
The C-More HMI Panel programming software has a simulation mode. This simulator will allow you to test your project before transferring it to a panel. Testing your application is a vital step in HMI program development. This feature of the software will save you time and money especially if your hardware is not available.
The simulator will display two windows. There is a graphical display of your HMI panel and a simulation control window. The control window will allow you to control variables in the project similar to a PLC.
We will be looking at our program developed last time (Common Screen Menu) and use the simulator to mimic how the PLC and HMI Panel will communicate in the field. This will help to detect any problems before we transfer to our panel. Let’s get started. Continue Reading!
A proximity sensor (switch) is able to detect object presence without physical contact like a limit switch. No physical contact means that the switch has no parts that will wear out. The life span of the sensor is increased with less maintenance.
A capacitive proximity sensor will detect ferrous and non-ferrous objects. The sensor works by oscillating the charge on the plates in the sensor. When an object is placed in front of the surface, the amount of current flow is detected. (Capacitance) The dielectric of objects will determine the distance that the object can be detected.
We will be wiring a capacitive proximity switch into the input of our Click PLC. The CK1-00-2H is an 18mm diameter, NPN/PNP N.O./N.C. selectable output with a 12mm sensing distance. That means that the sensor can be wired as positive (Sourcing) or negative (Sinking) switch. This unshielded 10 Hz switching frequency sensor also has a 4-pin M12 quick disconnect. Let’s get started. Continue Reading!
Allowing operators of your HMI (Human Machine Interface) panel to easily navigate all of the information available is a vital part of programming. We want to present the information to the operator so they will clearly understand the programmed operation of the unit. Common menus on the HMI panel pages will allow the quick navigation, understanding, and control that your operators want. When programming operator interfaces I have always heard to use the KISS method. (Keep It Stupidly Simple.) Your HMI program interface could contain hundreds of pages containing vital information for operator understanding and control, but you must make it easily accessible and intuitive. This is how you design and program a good HMI panel display.
We will be creating a common screen menu for our C-More EA9 HMI Panel using the C-More programming software. Using our previous program created we will be making a background screen to act as our menu system. Let’s get started. Continue Reading!