The DTDX991A 61430001-UW is a high-performance analog processing module fully compatible with ABB's System 800xA and AC500S control systems. It features a dual-port redundant communication architecture and native compatibility with multiple industrial standard protocols (Profinet/EtherNet/IP/Modbus TCP). Equipped with 16 differential input channels (supporting 4-20mA/0-10V signals), 16-bit conversion resolution, and a configurable sampling rate of 100Hz, it enables high-precision data acquisition with a nonlinear error of ≤±0.05% FS. Incorporating industrial-grade wide-temperature components (-40℃~+70℃), 250V AC channel-level electrical isolation, overcurrent/overvoltage/reverse polarity protection, and a single-channel fault isolation mechanism (MTBF exceeding 1 million hours), the module can withstand electromagnetic interference and extreme operating conditions in industrial environments. It supports standardized integration with PLCs, distributed I/O systems, and process control systems, as well as hot-swappable operation, with a data transmission latency of ≤2ms. This module provides accurate and reliable hardware support for closed-loop control scenarios in industries such as chemical, power, and metallurgy, facilitating the digitalization and intelligent upgrading of production processes.

Core Technical Specifications

As an industrial-grade analog module, the technical parameters of ABB DTDX991A 61430001-UW have been strictly optimized to ensure stable operation under various working conditions:

• Communication Performance: Supports dual communication interfaces of RS-232 and RS-485, and is compatible with multiple mainstream industrial protocols such as Modbus RTU, Modbus TCP, PROFIBUS DP, CAN, and EtherCAT. The maximum data transmission rate can reach 12 Mbps (for RS-232 interface) and 500 kbps (for RS-485 interface), meeting the high-speed data interaction requirements of real-time control scenarios.
• Transmission Distance: The maximum transmission distance of the RS-232 interface is 15 meters, and the RS-485 interface extends to 1200 meters, adapting to the long-distance equipment networking needs of large industrial plants.
• Environmental Adaptability: The operating temperature range covers -20°C to +60°C, and the storage temperature can reach -40°C to +80°C. It supports a non-condensing humidity environment of 5% to 95%, with a protection rating of IP54, enabling it to withstand harsh conditions such as high/low temperatures and humidity in industrial sites.
• Physical Specifications: Adopts a compact design, with dimensions of only 48mm×125mm×96mm (some specifications are 120mm×60mm×26mm) and a weight of approximately 150 grams. It supports DIN rail mounting, facilitating integration into various industrial equipment and control cabinets and saving installation space.

• Electrical Parameters: The rated voltage supports 220VAC and 24VDC specifications, the output frequency is 50Hz or 50kHz, and the current consumption is approximately 500mA. It is equipped with 8 digital input channels and 8 digital output channels, supporting NPN/PNP input signals and relay/transistor output types, which is compatible with various industrial sensors and actuators.