Description
UAA326A02 HIEE300024R2 ABB Board module
UAA326A02 HIEE300024R2
ABB Serial Communication Interface Module | Advant OCS/Symphony Plus Platform
UAA326A02 HIEE300024R2 ABB Board module
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■ Belonging system
ABB Advant Controller 450 / AC 460
ABB Symphony Plus Distributed Control System (DCS)
Module positioning
The UAA326 series is a pure communication interface board and does not have logic processing or I/O functions. The A02 variant differs from A01/A03/A04 in terms of the number of interface channels or configuration, and is specifically designed to provide serial data exchange capabilities for the Advant/Symphony Plus system.
■ Core competencies
Communication interface: RS-232/RS-485 serial port (specific configuration depends on A02 variant)
Protocol support: Modbus RTU master/slave, ABB private protocol
Typical applications: connecting serial printers, HMI terminals, Modbus meters/inverters, barcode scanners
Communication speed: up to 115.2kbps, configurable
Electrical and Environmental
Power supply: 24V DC, uniformly powered by DCS backplane
Working temperature: -20 ° C~+60 ° C
Storage temperature: -25 ° C~+70 ° C
Protection level: IP20 (indoor installation)
⊙ Power consumption: approximately 2-3W
Installation method: DIN rail, compatible with TK371/TK372 I/O subrack
■ Diagnosis and maintenance
Each channel is equipped with LED status indicator lights, which support on-site visual troubleshooting
⊙ Module level normal operation LED
⊙ Backboard power supply design, supporting hot swappable replacement (when supported by the system)
■ Associated model
Same series: UAA326A01/A03/A04 (HIEE300024R1/R3/R4)
Communication support: UAA327A01 (Ethernet communication module), CI801 (fiber optic communication module)
Engineering tool: Composer (Advant/Symphony Plus programming software)
Typical application scenarios
Connecting the upper computer to download programs and online monitoring in the DCS of the power plant
⊙ Connect the serial printer to output alarm records and operation reports
As a Modbus gateway, it interfaces with third-party instruments and frequency converters
Data bridging between controller and SIS safety instrumented system
■ Precautions for use
This module is a pure communication board and cannot be used as a substitute for controllers or I/O modules
During RS-485 communication, it is necessary to correctly set the terminal resistance (120 Ω) according to the network topology
When replacing, it is necessary to confirm that the model is completely identical (HIEE300024R2/UAA326A02). Different variants result in different interface configurations and cannot be mixed
This model has been discontinued and the market is dominated by inventory and disassembled parts. It is recommended to verify the source of spare parts and system compatibility when purchasing (Advant OCS/AC 460/Symphony Plus)
Communication parameters (baud rate, data bits, parity bits, station address) need to be configured correctly in Composer
