When you add a module, you also define a specific configuration for the module. In order to establish a communication between the controller and an I/O module in the system, add the module to the I/O Configuration folder of the controller. 3.2 Configure the I/O modules: In the next steps we intend to configure the physical modules in the project. If it doesn t work, check if you have selected the correct port. Verify that the Auto-Configuration was successful. o From the Device pull-down menu, choose Logix 5550-Serial Port.
o From the Com Port pull-down menu, choose the serial port on the workstation to that the cable is connected to (e.g. The configure dialog box appears: Figure 2.3: Configuring Communication 5Ħ Specify the serial port settings.
The Add New RSLinx Driver dialog box appears. From the Available Driver Types pull-down menu, choose the RS-232 DF1 Device driver. For the serial communication we need to configure the RS-232 DF1 Device driver. To configure a connection, we use the RSLinx Classic Lite software.
3.1 Configuring the hardware Connect the Controller via the Serial Port and Configure the Serial Driver: Begin with connecting the serial cable to the PC on one side and the controller on the other side. We will explain the steps to setting up a project on PLC Allen Bradley using RS logix5000 software. The connection between the controller and the computer is either serial cable or Ethernet cable.
3ĥ ALLEN BRADLEY PLC: CompactLogix 元2E Allen-Bradley is the brand-name of a line of Factory Automation Equipment manufactured by Rockwell Automation.
For example, compact PLCs (input module, central control unit and output module in one housing) or modular PLCs. Depending on how the central control unit is connected to the input and output modules, various versions of the PLC can be put together. Fig 2 shows an example presented in different ways using controllogix development tool. The other features are function block diagram (FBD) and statement list (STL). The programs and operational routines in a PLC can be created in various ways: The "Ladder diagram" strongly resembles a schematic diagram of relay logic.
The actual processing of the signals is undertaken in the central control unit and with respect to the program stored in the memory. This converts the PLC signal into signals suitable to operate and invoke the plant actuators. The reverse task is performed by an output module. PLC components The function of an input module is to convert incoming signals into signals that can be processed by the PLC, and to pass those signals to the central control unit. PLC Components Fig 1 illustrates the system components of a PLC. The new control system had to meet the following requirements: Simple programming Program changes without system intervention (no internal rewiring) Smaller, cheaper and more reliable than corresponding relay control systems Simple, low cost maintenance 2. The first Programmable Logic Controller (PLC) was developed by a group of engineers at General Motors in 1968, when the company were looking for an alternative to replace complex relay control systems. The PLC is designed for multiple inputs and outputs arrangements, so we can get the data from the sensors, work with it and command the actuators. Introduction PLC is a digital computer used for automation of electromechanical processes in plants. 2 Programmable Logic Controller (PLC) Alireza Mousavi, Morad Danishvar and Alexandre Spieser 1.