PLC & HMI
Connect to PLC via USB cable
If the controller (usually 1756-L7x ControlLogix and over ) has a USB port that uses a Type B receptacle. The...
PLC First Scan Bit
What is First Scan Bit and How to create a tag? This bit is activated every time the PLC switches...
Siemens PLC Programming, S7-300 and S7-400 (SIMATIC S5) PLC
Communication Modules Communication modules provide data exchange between PLCs and input-output units or between other personal computers. These modules can...
How to get data from plc to excel
In order to get data from PLC with Excel, we need to use OPC. If you are using Rockwell Allen-Bradley...
PLC Function Blog Diagram (FBD)
Function Blog Diagram, whose short name is FBD, is not a highly preferred type of PLC programming language, but it...
FTView SE and Factorytalk Site Client Edition
In HMI applications you create with Factorytalk site edition, the network-based distributed application; You can access the application you created...
Importing an Add-On Instruction Definition
Importing an Add-On Instruction Definition Perform this procedure when you want to use the definition for an Add-On Instruction that...
Studio 5000 Logix Designer Add-On Instructions Create
How to Create Add-On Instructions in Logix Designer One of the most powerful newer features of the RSLogix 5000 program...
Safety Add-On Instructions
Safety Add-On Instructions Like standard Add-On Instructions, safety Add-On Instructions let you encapsulate commonly-used safety logic into a single instruction,...
Add-On Instructions
Add-On Instructions Add-On Instructions are user-defined instructions. When you define an Add-On Instruction in a project it behaves similarly to...
PLC Programming
The objectives of PLCtr are to provide practical instruction and help for anybody involved with PLCs from the maintenance staff to the PLC programmer. You don’t necessarily have to be a “writer” to contribute. If it has anything to do with any PLC and the devices connected to it then we are interested. If you want to become a writer, please write to us on the contact page. Join us.