Description
ABB HIEE300024R4 UAA326A04 Communication Module
UAA326A04 HIEE300024R4 is a Serial Communication Module produced by ABB, which is the core communication component of ABB Advance OCS/Symphony Plus distributed control system (DCS).
[Product Positioning]
This module is a dedicated serial communication gateway board in the ABB Advant Controller 450/AC 460 and Symphony Plus systems. Its core function is to provide a serial data exchange channel between the DCS controller and external devices (upper computer, HMI, printer, PLC, etc.). It is not a processor or I/O module, but a pure communication interface board.
ABB HIEE300024R4 UAA326A04 Communication Module
[Core Function]
Serial communication: Provides RS-232 and/or RS-485 serial port interfaces to enable point-to-point or multi-point communication between the controller and external devices.
Protocol support: Supports Modbus RTU master/slave mode and is compatible with ABB’s proprietary communication protocol, allowing for data exchange with third-party devices such as frequency converters, instruments, and PLCs.
Communication forwarding: As a communication bridge between the Advant controller and the upper system (such as System 800xA, third-party SCADA), it forwards process data and alarm information.
Printer/HMI interface: commonly used to connect peripheral devices such as serial printers, operator stations, barcode scanners, etc.
[Technical Specifications]
Power supply voltage: 24V DC (powered by DCS backplane)
Communication interface: RS-232C/RS-485 (specific configuration depends on the variant)
Communication speed: up to 115.2kbps (typical), configurable
Working temperature: -20 ° C to+60 ° C
Protection level: IP20 (indoor installation)
Installation method: DIN rail installation, compatible with ABB standard I/O racks (such as TK371, TK372, etc.)
Power consumption: approximately 2-3W
Dimensions: Compact DIN rail module, approximately 100mm x 50mm x 25mm
Typical application scenarios
Connect the upper computer or engineer station in the Advant OCS/AC 460 system for program download and online monitoring.
As a serial communication gateway in the Symphony Plus system, it interfaces with Modbus devices such as third-party instruments and frequency converters.
Connect a serial printer for alarm recording and report output.
Realize data exchange between the controller and SIS safety instrument system in the power plant DCS system.
[Associated Model]
Same series: UAA326A02, UAA326A03 (different channel numbers or interface configurations)
Similar functions: UAA327A01 (Ethernet communication module), CI801 (fiber optic communication module), CI840/CI840A (Ethernet/serial communication module)
Supporting use: Advant Controller AC 450/AC 460, Symphony Plus I/O subrack (TK371/TK372)
Engineering tools: Composer (Advant/Symphony Plus programming software), Control Builder (compatible configuration in 800xA environment)
[Precautions for use]
This module is a pure communication interface board and does not have logic processing or I/O functions, and cannot be used as a substitute for a controller.
During RS-485 communication, the terminal resistance should be set according to the network topology (120 Ω terminal should be enabled at the beginning or end).
When replacing, it is necessary to confirm that the model is completely consistent (HIEE300024R4/UAA326A04), and if the variant code (A01/A02/A03/A04) is different, the interface configuration will be different and cannot be mixed.
Due to the discontinuation of this model, the market is dominated by inventory and disassembled parts. It is recommended to prioritize confirming the reliability of spare parts sources and verifying system compatibility (Advant OCS/AC 460/Symphony Plus platform) when purchasing.
The communication parameters (baud rate, data bits, parity bits, station address) need to be configured correctly in the engineering software, otherwise communication cannot be established.
