А кому-нибудь приходилось иметь дело с контроллерами PICO от Rockwell Automation ?
Цитата
Pico Controller
The Allen-Bradley Pico controller performs simple logic, timing, counting, and real-time clock operations. Splitting the difference between a timing relay and a low-end PLC, the Pico controller is ideal for relay replacement applications, simple control applications such as building and parking lot lighting, and applications in which cost is a primary issue. Designed with ease of use in mind, all programming and data adjustments can be done via the on-board keypad and LCD display, or with PicoSoft™ configuration software.
* Available as 120V/240V ac, 24V ac, as well as 12V and 24V dc versions
* Dc and analog inputs
* Up to 38 I/O points when an I/O expansion module is connected to an 18-point controller
* EEPROM memory
* Password security
* Simple math
* Real-time clock
* Text display
* PicoSoft programming software
* UL, CSA, or C-UL CE
Pico Series B — Replaces Series A
The Pico Series B controllers are equipped with faster processor speeds and an expanded memory, resulting in three times the ladder logic capacity and twice the number of function blocks than previously available. The new line of controllers also features backwards-compatible programming, improved display functionality and additional power supply options. The Pico Series B line of controllers includes an increased retentive memory range, enabling the controllers to be used in applications that require up to 128 lines of ladder logic. The controllers also have additional coil functions, and enhanced clock and seasonal time configurations.
14 NEW and 9 updated controllers with:
* New Power Supply Offerings — 24 V ac
* I/O configurations
* Display options
* DeviceNet Communications Module
* Remote Mounting CPU for Text Messaging Pico GFX and Pico Standard
http://www.ab.com/programmablecontrol/plc/...controller.html