Building Automation System DDC4000
The DDC4000 automation system is an operating and control system for the measurement, control, operation, optimization and monitoring of technical plants (BTA). It is developed on the basis of a 32-bit processor and works according to the multi-task principle. The operating system is Linux.
Components, Modules (Hardware)
It consists of DDC4000 automation station (DDC4000 central unit), switching cabinet modules BMA, BMD and SBM (Bus Module Analog, Bus Module Digital, Switching Cabinet Module), Field Bus Modules, FBM, and control modules FSM (Front Switching Modules).
Bus Systems
The DDC4000 automation stations communicate over the Ethernet (TCP/IP, BACnet). Up to 99 DDC4000 automation stations communicate in a network with each another.
Each DDC4000 automation station has two further switchable interfaces to bus systems based on CAN. Switching cabinet bus for the connection of 16 modules BMA, BMD and SBM (input/output modules, control modules, gateway modules). Field bus for the connection of 63 FBM modules (input/output modules) and/or DDC (control modules).
Programs (software)
The basic functions of the DDC4000 automation system consist of:
Basic programs in the form of control functions for heating, ventilation and set point control, including control logic.
Message management with storage of fault messages for messages from the technical plants (BTA) and system messages.
Software objects that can be freely structured and parameterized.
For configuration there is a modern, effective object structure that reduces planning costs.
Operation
Operation takes place at the automation station via a touch screen in the dialogue with diagrams and plain texts. The operation of the entire DDC4000 automation system is possible from each attached DDC4000 automation station (remote control) without accessory equipment.
The web server of the DDC4000 automation station enables remote maintenance using various computers with a web browser.
The SBM control modules have parameterizable switches/tracers and LEDS. The DDC control modules have parameterizable switch/tracers and a LCD display.
Interfaces
The BMS control center can be directly connected to the DDC4000 automation station via Ethernet. The DDC4000 automation system has native BACnet (open standard) for communication with the BMS control center. For remote BMS control centers, data communication takes place by modem via the telephone network.
The DDC4000 automation system is functionally compatible with the DDC3000 automation system. A direct connection to the DDC3500 BACnet is possible.
The integration and/or binding of other automation systems takes place at the automation level by means of Ethernet, at the field level by the SBM51 gateway module and by the SBM52 at the switching cabinet bus.
Benefits
Open communication
Object oriented parameterization
Control concept according to peoples’ needs
Networking via an Ethernet interface
Remote maintenance and use of web services
