powerful performance, 

optimum modularity and 

open communications.

Small and compact – ideal for any applications where space is tight

Basic and advanced functionality in all CPU models

Large program and data memory

Outstanding real-time response – being in total command of the entire process at any time means increased quality, efficiency and safety

Easy-to-use STEP 7-Micro/WIN engineering software – ideal for both beginners and experts

Integrated R-S 485-interface or use as system bus 

Extremely fast and precise operational sequence and process control  

Complete control of time-critical processes by time interrupts

5 distinct CPUs in the performance range with comprehensive basic functionalityand integrated Freeport communications interface

A wide range of expansion modules for various functions:
– Digital/analog expansions, scalable to specific requirements
– PROFIBUS communication as a slave
– AS-Interface communication as a master
– Exact temperature measurement
– Positioning
– Remote diagnostics
– Ethernet/Internet communications
– SIWAREX MS weighing module

HMI functions 

STEP 7-Micro/WIN software with Micro/WIN add-on instruction library

Compelling systems engineering – now featuring precise dimensioning andoptimum solutions for a wide range of different requirements for the completeautomation task

Memory card for data logging, recipe management, saving of STEP 7-Micro/WIN project, and storageof documentation in various formats

PID auto-tune function 

2 built-in serial ports for extended communication options, e.g. with other manufacturers’ devices(CPU 224 XP, CPU 226)

CPU 224 XP with built-in analog inputs/output

4 or 6 independent hardware counters, each with 30 kHz, 2 x 200 kHz with a CPU 224 XP, e.g. for precise path monitoring with incremental encoders or for high-speed counting of process events

4 independent alarm inputs, input filter time 0.2 ms to program action – for maximum process safety

Pulse-capturing function for signals > 0.2 ms for fast events from the application

2 pulse outputs, each 20 kHz, or 2 x 100 kHz with CPU 224 XP with pulse-width modulation and pulse no-pulse setpoint – e.g. for controlling stepper motors

2 timed interrupts starting at 1 ms and adjustable in increments of 1 ms – for bumpless control of rapidly changing processes

Fast analog inputs – signal conversion with 25 μs, 12-bit resolution

Real-time clock

Between 1 and 255 ms, with a resolution of 1 ms

For example: it is possible to record and process signals on screw insertion machine at 3000 RPM after just a quarter turn. This enables very precise recording, for instance, of tightening torques to ensure optimum fastening of the screw.

Operating independently of each other, of other operations and of the program cycle

Interrupt triggering when user selectable counted values are reached – reactiontime from the detection of an input signal to switching of an output is 300 μs

4-edge evaluation when incremental position encoders are used for exact positioning

Modular expandability

4 independent inputs 

For registering signals in rapid succession 

Response time of 200 μs–500 μs for signal detection/300 μs for signal output 

Response to positive-going and/or negative- going signal edge 

Max. 16 interrupts in one queue depending on prioritization