Description
Detailed parameter table
| Parameter name | Parameter value |
| Product model | 0745648E |
| Manufacturer | ABB |
| Product category | Digital input module |
| Input channels | 16 isolated channels |
| Input voltage range | 0-24 V DC |
| Maximum current per channel | 250 mA |
| Communication protocol | Modbus RTU (via RS485) |
| Operating temperature range | -40°C to 85°C |
| Humidity tolerance | 0-95% RH (non-condensing) |
| Power supply | 8-32 V DC |
| Dimensions | 120mm × 80mm × 30mm |
| Mounting type | DIN rail (35mm) |
| Certifications | CE, UL, IEC 61131-2 |
ABB 0745648E
Product introduction
The ABB 0745648E is a high-performance digital input module designed to serve as a critical data acquisition component in industrial automation systems. As part of ABB’s robust lineup of control peripherals, ABB 0745648E specializes in converting discrete electrical signals from field devices—such as limit switches, proximity sensors, and emergency stops—into digital data for processing by PLCs, DCS, or other control systems.
Engineered for versatility, ABB 0745648E bridges the gap between field-level sensors and higher-level automation controllers, ensuring accurate and timely data transmission. Its 16-channel design makes it ideal for medium-scale monitoring tasks, while its adherence to industrial standards ensures seamless integration with existing ABB and third-party automation architectures. Whether deployed in manufacturing lines, utility plants, or process facilities, ABB 0745648E delivers reliable performance as a foundational element of data-driven automation.
Core advantages and technical highlights
Rapid response for real-time control: ABB 0745648E features a 1-millisecond response time, ensuring that even the fastest transient signals from field sensors are captured without delay. In high-speed applications—such as automotive assembly lines monitoring part positioning—this speed prevents data loss and enables immediate adjustments to machinery, reducing scrap rates and improving throughput. Unlike slower modules that introduce latency, ABB 0745648E ensures synchronization between sensor input and controller action.
Extreme environmental resilience: Built to thrive in harsh industrial settings, ABB 0745648E operates reliably across a temperature range of -40°C to 85°C and withstands humidity up to 95% (non-condensing). This makes it suitable for unconditioned environments like outdoor pump stations, foundries, or cold-storage facilities, where lesser modules might fail due to thermal stress or moisture. Its rugged construction includes conformal coating on circuit boards, protecting against dust, vibration, and minor chemical exposure.
Flexible network integration: Equipped with an RS485 interface and Modbus RTU protocol, ABB 0745648E integrates effortlessly with both legacy and modern control systems. It supports daisy-chaining of up to 32 devices on a single network, reducing wiring complexity in large installations. For example, in a wastewater treatment plant, ABB 0745648E can connect to multiple level sensors and transmit data to a central SCADA system, while coexisting with other Modbus-compatible devices like variable frequency drives and flow meters.
Typical application scenarios
In automotive manufacturing, ABB 0745648E plays a pivotal role in body-in-white production lines, where it monitors 16 discrete sensors tracking robotic weld gun positions, fixture clamps, and part presence. Its 1ms response time ensures that if a clamp fails to engage, the module immediately signals the PLC to halt the welding cycle, preventing misalignment and costly rework. The module’s wide temperature tolerance allows it to operate near welding cells, where ambient temperatures often exceed 50°C, without performance degradation.
In municipal water treatment facilities, ABB 0745648E connects to float switches, pressure transducers, and valve position sensors across filtration and disinfection stages. It transmits real-time status data—such as filter backwash initiation or chlorine injector activation—to the plant’s DCS via Modbus RTU. Its ability to function in high-humidity environments (common in water plants) and resist corrosion from airborne chemicals ensures uninterrupted operation, critical for maintaining water quality and regulatory compliance.
ABB 0745648E
Related model recommendations
ABB 0745649E: A 32-channel digital input module, ideal for larger-scale monitoring tasks requiring double the channel count of ABB 0745648E.
ABB 0745650E: A digital output module that complements ABB 0745648E by enabling control of actuators, valves, and alarms based on input data.
ABB CI858-1 3BSE018137R1: An Ethernet communication module that connects ABB 0745648E to higher-level networks, supporting protocol conversion to PROFINET or EtherNet/IP.
ABB PPE091A101 3BHE044481R0101: A redundant power supply that ensures stable 24V DC power to ABB 0745648E in critical applications.
ABB DAPI100 3AST000929R109: A compact 16-channel digital input module with similar functionality to ABB 0745648E, designed for space-constrained cabinets.
ABB AI880-1: An analog input module that, when paired with ABB 0745648E, provides mixed-signal monitoring (discrete + continuous) in complex systems.
Installation, commissioning and maintenance instructions
Installation preparation: Mount ABB 0745648E on a 35mm DIN rail in a control cabinet, ensuring at least 20mm of clearance from adjacent components for airflow. Use shielded twisted-pair cable (0.5mm²) to connect field sensors to the input terminals, grounding the shield at both the module and sensor ends to minimize EMI. For power, connect to an 8-32V DC supply with a 1A fuse, ensuring polarity matches the module’s markings. Required tools include a torque screwdriver (0.5-0.8 Nm), wire strippers, and a multimeter for voltage checks. Power off all systems during installation to prevent electrical hazards.
Maintenance suggestions: Inspect ABB 0745648E quarterly for loose terminal connections, dust buildup, and corrosion. Clean the module with compressed air (low pressure) to remove debris from ventilation slots. Verify input signal integrity by manually activating connected sensors and checking for corresponding status updates in the controller. If communication faults occur, test the RS485 bus with a protocol analyzer to identify wiring issues or address conflicts. Replace the module if channels consistently fail to detect signals, using only ABB-certified replacements to maintain performance and safety standards.
Service and guarantee commitment
ABB 0745648E is backed by a 5-year warranty from the date of installation, covering manufacturing defects and ensuring compliance with published performance specifications. ABB’s global technical support team provides responsive assistance within 4 hours for critical issues, with remote diagnostics and troubleshooting guidance available 24/7. For on-site support, qualified technicians are dispatched within 72 hours for urgent cases in major industrial regions.
The warranty includes free access to firmware updates and configuration tools for the first 3 years, ensuring ABB 0745648E remains compatible with evolving automation systems. Extended service contracts offer annual preventive maintenance, calibration checks, and priority support, maximizing uptime and extending the module’s operational lifespan. ABB’s commitment to quality ensures ABB 0745648E delivers consistent performance in the most demanding industrial environments.
