Saia-Burgess

Rack cassette construction Saia® PCD3 device series

Continuity, originality and individual profile for over 25 years

Conventional PLC construction

Since the beginning of Saia® control engineering, more than 25 years ago, Saia® product series have also been available in conventional PLC construction. Based on several product generations with a conventional PLC construction, the new PCD3 product series introduced many new technologies and achieved significant improve-ments in performance, function, size and cost.

Performance of the PCD3 series

The highly modular hardware and firmware of the PCD3 series enables it to cover a range of functions and performance, for which others need many different series of devices. Achieving this demanded many innovations. For example, in contrast to the usual construction paradigms, the PCD3 series CPU is not plugged in as a module, but built into the back wall. For the plug-in interface modules, two different system buses have been integrated in parallel. One system bus is similar in function to the bus in the flat Saia® PCD1/Saia® PCD2 series. The second system bus allows the PCD3 to run as a motion controller, or as a node in a data network.

Saia® PCD3 series

The PCD3 I/O interface line currently includes over 35 different plug-in modules. Over the next few years, priority will be given to expanding this interface line, providing dedicated interface combinations (HeaVAC, motion control, redundancy) and implementing enhancements in the construction/connection technology.
The Saia® PCD3.M5 CPU is an enormously strong communicating / computing machine with numerous on-board functions, all of which is combined in a very small, compact format. Profibus, Ethernet, RS485, RS232 and USB are integrated as on-board interfaces. The most diverse protocol stacks and services can be implemented as firmware modules or as user programs. In PLC speed, the Saia® PCD3.M reaches the same upper mid-class level as, for example, a Siemens® S7 318. As a modular controller, the PCD3.M can be expanded to include 1024 central I/Os.
The Saia® PCD3.T7xx line stands for remote I/O stations on standard Profibus and Ethernet-TCP/IP. The Saia® PCD3.T76x has two serial ports and a web server as standard, integrated in the head station.

Enormous diversity of function and power with Saia® PCD3