PLC s7-300

50% smaller than previous CPUs for the S7-300MPI (Multi Point Interface) Main memory up to 48KBContains functions such as closed control loop, positioning, counting

S7-300 compact CPUsThe S7-300-CPUs for the lower output range Expanded system functions, a significantly larger main memory and an enormous increase in the processing performance are distinctive features of this innovation. All compact CPUs have onboard peripherals and integrated technology functions. Some versions are also equipped with an integrated PROFIBUS DP interface (DP) or a point-to-point interface (PtP) as well as the MPI interface. This new CPU is completely maintenance-free, as the new memory module means a battery back-up is not needed.

Process data and instructions quickly and clearly with this compact CPU (central processing unit) from Siemens. It has 24 digital and 4 analogue inputs, so it can receive physical measurements as well as inputs from computer programmes. It’s practical for use in industrial automation, robotic machinery and the automotive industry thanks to 4 high-speed counters that process data at 60kHz per second. This small-scale unit measures just 120 (W) x 125 (L) x 130mm (D), so it’s useful in areas where space is limited. It has an MPI (message passing interface), which allows it to communicate conveniently with other controllers and operator panels.

• Easily mounted on a DIN rail or wall for quick installation
• PWM (pulse width modulation) outputs enable the control of valves and actuators
• 192kB (kilobyte) working memory allows multiple applications to function simultaneously without delay
• Capable of simple motion control to manage the velocity, position and acceleration of loads

Yes. In order to function this CPU needs a SIMATIC micro memory card and front connector.

This CPU runs on a 24V DC circuit, so it adheres to automation industry standards.

S7-300 Compact Base Units & PSU’s

The S7-300 compact provides more power and additional features with an easy and simple upgrade path from the S7-200 series, and includes many of the common features & instructions found on other models within the range.

Supply voltage for all CPU’s : 24Vdc
24Vdc input
MPI interface for communications with other controllers and operator panels
Enhanced communications possible using either PtP (RS485/422 serial interface) or DP (Profibus DP) interface
CPU’s have integral counters, frequency measurement capabilities and PWM outputs enabling direct control of valves & actuators
Simple motion control possible without additional components