Technical Specifications Back‑plane controller bus interface, multi‑group RS‑232 / RS‑485 composite serial ports. Auxiliary power 24 V DC, typical power consumption 3.7 W. Operating temperature 0 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, non‑condensing relative humidity 5%‑95%. Each serial channel adopts independent galvanic isolation.
Functional Features Realizes high‑speed data interaction with main controller via back‑plane bus. Processes multi‑channel serial data frame packaging and parsing simultaneously. Collects data from multiple serial field devices. Transmits controller commands to target external equipment. Front‑panel LED indicators display link status of each serial channel and module fault alarm. Built‑in hardware self‑diagnosis detects channel abnormality and internal circuit faults.
Application Scenarios Multi‑port serial communication spare part for ABB Advant DCS system. Suitable for automation sites with multiple serial‑protocol third‑party devices.
Performance Parameters Multi‑channel concurrent serial‑data processing capacity. Stable long‑time communication operation.
Material Composition Flame‑retardant plastic module housing. Multilayer glass‑fiber epoxy printed circuit board. Multi‑channel serial processing chip and independent signal isolation assemblies. Back‑plane plug‑in connector and serial signal terminals.
Structural Characteristics Standard rack plug‑in module. Front side equipped with multi‑group serial communication terminals and per‑channel status LED indicators. Rear side fitted with back‑plane bus connector. Weight approximately 0.35 kg.
Working Principle After power‑on initialization, every serial channel establishes communication with corresponding external device. Received field data from each channel is processed and uploaded to controller through back‑plane bus.Diagnosis circuit monitors each serial channel and module hardware state continuously.
Installation Requirements Insert DSTC456 into target rack slot and lock fixing latch. Connect shielded serial cables to corresponding front‑end terminals. Confirm back‑plane connector is fully engaged. Restore power supply, configure communication parameters for each channel and verify data transmission.
Usage Notes Use shielded cables for serial signal wiring. Verify communication status of every serial channel after installation.
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