Product Overview

The ABB PDD405A101 3BHE041626R0101 is a 16-channel digital input module from ABB, designed for integration into the AC800M distributed control system (DCS) and Symphony Plus automation platform . This module is engineered to reliably capture status signals from field devices such as switches, pushbuttons, relay contacts, and proximity sensors, converting 24V DC input signals into logic-level data for the controller to process . The ABB PDD405A101 3BHE041626R0101 plays a vital role in process control, safety interlock systems, and equipment status monitoring across industries including power generation, oil and gas, and heavy manufacturing.

The ABB PDD405A101 3BHE041626R0101 is designed for direct installation into an AC800M I/O rack, drawing power from the system backplane and communicating with the controller via the module bus . Its robust photoelectric isolation between input channels and the backplane provides excellent noise immunity, ensuring stable reading of switch states even in electrically noisy environments such as rolling mills or substations . The module’s typical response time of ≤1 ms ensures that critical digital signals, such as emergency stop commands, are transmitted without unnecessary delay . The ABB PDD405A101 3BHE041626R0101 supports a wide input voltage range of 15–30V DC, with a nominal input current of approximately 4 mA at 24V, making it compatible with standard industrial sensors and control circuits . It also supports redundant controller configurations, allowing the I/O signal to be available to both a primary and backup controller for enhanced system availability . The ABB PDD405A101 3BHE041626R0101 is a critical component for maintaining and upgrading legacy Advant OCS and System 800xA installations, offering reliable and accurate digital input processing for vital process monitoring and safety functions.

 

Technical Specifications

Parameter Name	Parameter Value
Product Model	PDD405A101 3BHE041626R0101
Manufacturer	ABB
Product Type	Digital Input (DI) Module
Series	AC800M / Symphony Plus / Advant OCS
Input Channels	16, isolated
Input Voltage	24V DC (nominal), 15–30V DC range
Input Current	4 mA typical at 24V
Isolation Method	Photoelectric, channel-to-channel and channel-to-backplane
Response Time	≤1 ms (ON→OFF / OFF→ON)
Operating Temperature	0°C to +60°C
Storage Temperature	-40°C to +85°C
Installation	AC800M I/O rack
Certifications	CE, UL, IEC 61010
Redundancy Support	Yes, compatible with redundant controller configurations
Net Weight	Approx. 0.5 kg
Product Status	Active spare / support phase (legacy compatibility)

 

 

Main Features and Advantages

Reliable Digital Input Acquisition: The ABB PDD405A101 3BHE041626R0101 provides 16 independent digital input channels, each with photoelectric isolation that protects the module and the backplane from voltage transients and noise common in industrial environments . This robust isolation ensures that even in facilities with high electromagnetic interference, the ABB PDD405A101 3BHE041626R0101 delivers accurate and repeatable readings from limit switches, pushbuttons, and relay contacts.

High-Speed Response for Critical Control: With a response time of ≤1 ms, the ABB PDD405A101 3BHE041626R0101 is capable of capturing rapid state changes essential for safety interlock and emergency stop monitoring . This fast response ensures that critical protection logic receives timely input signals, enabling the controller to execute safety actions without delay. In process control applications, the ABB PDD405A101 3BHE041626R0101 ensures that valve position feedback and motor start/stop status are reported with minimal latency.

System Compatibility and Scalability: The ABB PDD405A101 3BHE041626R0101 integrates seamlessly with ABB AC800M controllers, Symphony Plus systems, and Advant OCS platforms, making it a flexible solution for both new installations and legacy system upgrades . It is compatible with redundant controller configurations, allowing the module’s input signal to be processed by both primary and backup controllers for enhanced system availability .

Industrial-Grade Construction: Designed for demanding industrial environments, the ABB PDD405A101 3BHE041626R0101 operates reliably across a wide temperature range and is certified to CE and UL standards . The module’s compact design fits easily into standard AC800M I/O racks, and its LED status indicators provide rapid visual feedback on input states and module health . The ABB PDD405A101 3BHE041626R0101 is a proven component with a long service life, making it a trusted choice for plant maintenance and system expansion projects.