D28799-005 (Invensys) – General Specifications
D28799-005 is a redundant serial communication module for process control systems under the TRICONEX series of Invensys. It typically features the following general specifications:
Communication Interface Standard
It is highly likely to be compatible with common serial communication standards such as RS-232, RS-422, or RS-485—a design that meets the requirement of TRICONEX systems for stable physical links to ensure reliable data exchange in redundant communication. However, specific configurations can be set to appropriate modes based on actual needs.
Communication Baud Rate
It supports multiple common baud rate levels, including 9600bps and 19200bps, with a maximum possible rate of up to 115200bps (or similar). The baud rate can be flexibly configured via system configuration tools according to communication network load and peripheral response performance.
Redundancy Feature
Its redundant structure is compatible with the Triple Modular Redundancy (TMR) architecture of TRICONEX. In case of a fault, the switchover time is generally in the millisecond range to prevent communication interruption. The switchover duration may be affected by factors such as network complexity.
Operating Voltage
It usually adopts a typical industrial operating voltage of 24V DC, with an operating voltage range of approximately 20-28V DC. This ensures compatibility with the TRICONEX cabinet power supply system.
Operating Temperature
It meets the requirements of industrial on-site operation. The operating temperature range is typically 0 to 60 degrees Celsius, while the storage temperature range is roughly -20 to 80 degrees Celsius.
Protection Class
Board-type modules generally have a protection class of IP20, which is suitable for installation inside control cabinets and prevents foreign objects from touching live or critical components.
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