Siemens PLC systems SIMATIC Controllers Industrial Automation

Siemens PLC systems SIMATIC Controllers Industrial Automation

Programmable Logic Controllers (PLCs), also referred to as programmable controllers, are in the computer family. They are used in commercial and industrial applications. A PLC monitors inputs, makes decisions based on its program, and controls outputs to automate a process or machine.

PLCs consist of input modules or points, a Central Processing Unit (CPU), and output modules or points. An input accepts a variety of digital or analog signals from various field devices (sensors) and converts them into a logic signal that can be used by the CPU. The CPU makes decisions and executes control instructions based on program instructions in memory. Output modules convert control instructions from the CPU into a digital or analog signal that can be used to control various field devices(actuators). A programming device is used to input the desired instructions. These instructions determine what the PLC will do for a specific input. An operator interface device allows process information to be displayed and new control parameters to be entered.

Pushbuttons (sensors), in this simple example, connected to PLC inputs, can be used to start and stop a motor connected to a PLC through a motor starter (actuator).

Siemens makes several PLC product lines in the SIMATIC® S7 family. They are: S7-200, S7-300, and S7-400.

6AV6644-2AB01-2AX0 SIMATIC MP 377 PRO 15" TOUCH MULTIPANEL, WINDOWS CE 5.0 15" COLOR-TFT-DISPLAY 12 MB USER MEMORY CONFIGURABLE FROM WINCC FLEXIBLE 2007
6ES7318-2AJ00-0AB0 6ES73182AJ000AB0 SIEMENS SIMATIC S7-300
SIMATIC S7-300, CPU 313C, COMPACT CPU WITH MPI,  24 DI/16 DO, 4AI, 2AO 1 PT100, 3 FAST COUNTERS (30 KHZ),  , INTEGRATED 24V DC POWER SUPPLY, 128 KBYTE WORKING MEMORY, , FRONT CONNECTOR (2 X 40PIN) AND MICRO MEMORY CARD REQUIRED
6ES5948-3UR23 6ES59483UR23 SIMATIC S5, CPU 948R Central processing unit for S5-155H, RAM 1600 KB
SIPLUS ET 200M IM 153-2 (*BA02) -40...+70°C start up temperature: -25°C with conformal coating based on 6ES7153-2BA02-0XB0 Connection ET 200M