Siemens SIMATIC S7-1200 Series PLC CPU for Use with SIMATIC S7-1200 Series, 20.4 → 28.8 V Supply, Digital, Relay

A range of Siemens SIMATIC S7-200 Standard CPUs certified for full use within the China market.

Compact high-performance CPU
With 24 inputs/outputs on board
Expandable with up to 7 expansion modules
6 fast counters (30 kHz)
2 high-frequency pulse outputs (max. 20 kHz)
Battery module for long-term backup

Use this central processing unit from Siemens to control all functions in your programmable logic controller. It regulates the logic and communication operations of your PLC for effective signal processing from machine sensors. The unit also houses a memory bank to store the operating data of the PLC, so you can retrieve it with ease. An integrated Ethernet network lets you connect easily to the internet. You can use this CPU to control the automation process in your packaging plants and conveyor systems. It has a processing time of 0.085μs for bit operations, 1.7μs for word operations and 2.3μs for floating-point arithmetic, making it reliable for fast data-processing applications.

• Can be mounted on a wall or DIN rail mounting for flexible installation
• Frequency counter for remote monitoring of connected machines
• Compatible with multiple programming languages for ease of configuration

This CPU can regulate the functions of 8 digital input modules and 6 digital relay output modules, making it a versatile choice. You can use 2 of the digital input modules to switch analogue signals for added versatility.

Siemens S7-200 Base Units - 3rd Generation

The S7 brings to the user a powerful solution to a host of control applications, which is easy to adapt and expand the system. The S7 is a family of PLCs which allows the user to tailor their selection of components which best suits their requirements, and is the long term successor to the highly successful S5 range. Whatever the S5 can do, the S7 can do more quickly and more easily. The 3rd generation of S7-200 now builds on the success of the original range and exploits new CPU's in order to produce even faster and more powerful range of PLC's. The range of CPU's available has been increased with the introduction of the new 224XP, as has the range of digital, analogue and communications expansion modules. For the faster type of application real time control is easily achieved by use of the comprehensive range of built-in interrupts. Timed, Communication, High Speed Counter, High Speed Pulse Output, and hardware interrupts are all available, and the implementation of a priority table means that all the interrupts can work simultaneously. Communications with S7-200 is built in. Inter PLC communications is achieved using two wire network which can be up to 1200 meters and can have up to 126 nodes. In "Freeport" mode the PLC's RS-485 port runs in free ASC11 mode making it possible to communicate with other devices. In line with Siemens objective to make the programming of S7-200 as user friendly as possible MicroWin programming software has been further improved. These improvements all help minimise program development time. This has been achieved by including more and improving existing "wizards". These help program developers with the more routine/complex parts of their programs, e.g. TD200 configuration, PID loop configuration, High Speed Counter configuration, etc. Inclusion of context sensitive help also means that all the information required is at the users fingertips.

New CPU hardware support provides the option to turn off run mode edit to obtain more program memory
CPU 224XP supports onboard analogue I/O and two communication ports
CPU 226 includes additional input filters and pulse catch facility
0.22μs processing time per instruction

Modular Expansion up to 256 total I/O (except S7-221)
Powerful Instruction Set, and Real Time performance
Programming via RS-485 comms port
All models have EEPROM memories for user program storage
2 or 4 x 30kHz pulse train outputs (dc powered models only )