For several years, CHANGXIN have specialized in trading high-quality components in the field of industrial automation.
Focusing on PLC components, DCS and CNC technology, and drivetechnology
UNITOLO1000 B-Z V104 3BHE014557R6104 Digital Input/Output Board
| Brand: ABB |
| Item NO: UNITOLO1000 B-Z V104 3BHE014557R6104 |
| Effect: Digital Input/Output Board |
| Condition: In stock, brand new/Used |
| Warranty: 365 days |
| Payment:T/T 50% deposit, 50% balance |
| www.szcxdcs.com |
+86 15359298293
UNITOLO1000 B-Z V104 3BHE014557R6104 Digital Input/Output Board
ABB 3BHE014557R6104 UNITOLO1000 B-Z V104 is a DIO digital input/output board for the excitation system of the UNITOLO1000 generator. This module serves as an external signal interface unit for the excitation control system, collecting digital input signals such as on-site switch status, circuit breaker position, unit interlocking, and fault contacts, and uploading them to the excitation control system; Simultaneously receive instructions from the main control, output relay switch signals, control excitation circuit switches, alarm indicator lights, and external interlock protection circuits. The implementation of switch value interaction between the excitation system and the power station DCS, as well as the local control circuit of the unit, ensures the sequential control, status feedback, and safety interlocking of the generator excitation system, and is an important I/O spare part for the synchronous generator excitation regulation system.

We are a trader specializing in the supply of industrial automation control system spare parts, providing long-term services to the manufacturing and energy infrastructure sectors. Our business covers discontinued spare parts, functional modules, control cards, and drive devices for the four core systems of PLC, DCS, robots, and servo drives. We are committed to providing customers with stable and reliable replacement and supply chain solutions for discontinued parts.
Main product range
- Control system (DCS/PLC/CNC): panel controller, HMI and human-machine interface, industrial PC, CPU processor module, communication module, analog/digital I/O module
- Drive and motion control: frequency converter, servo drive, servo motor, power module
- Robot spare parts: key spare parts such as robot control board, axis computer, servo unit, I/O module, etc
- State monitoring and safety system: vibration monitoring system, safety instrumented system (SIS), redundant controller
Application Industry
The products are widely used in various industrial fields such as metallurgy, oil and gas, petrochemicals, electricity, power transmission and distribution, water conservancy, water treatment and environmental protection, coal mining, aluminum industry, glass manufacturing, paper and printing, textile printing and dyeing, machinery manufacturing, electronics manufacturing, automobile manufacturing, plastic machinery, boiler heating, energy, etc.
UNITOLO1000 B-Z V104 3BHE014557R6104 Digital Input/Output Board


Main brand
| No. | Brand | Country/Region | Main Product Lines | Typical Series/Models |
| 1 | ABB | Switzerland | PLC/DCS Controllers, I/O Modules, Robot Spare Parts, Drive Systems | AC800PEC,AC800M, AC800F, AC31, 800xA, Bailey INFI 90, DSQC Robot Modules, Advant OCS, H&B Freelance |
| 2 | Bently Nevada | USA | Condition Monitoring Systems, Vibration Sensors, Proximitors | 3500 Monitoring System, 3300 Monitoring System, Eddy Current Probes, Proximitors |
| 3 | TRICONEX | USA | Safety Instrumented Systems (SIS), TMR Redundant Controllers | Tricon System Modules, Communication Modules, I/O Modules |
| 4 | Woodward | USA | Steam/Gas Turbine Control, Speed Governing Systems, Actuators | 505 Governor, ProTech, MicroNet, NetCon Series |
| 5 | FOXBORO | USA | DCS Systems, I/A Series Control Modules | I/A Series, FBM Modules, Controllers |
| 6 | WESTINGHOUSE | USA | DCS Systems, Ovation Controllers, Modules | Ovation System, WDPF Series |
| 7 | Motorola | USA | Industrial Communication Modules, Embedded Control Modules | MVME Series, VME Bus Modules |
| 8 | GE | USA | PLC, Excitation System Modules, CPU/Communication/Analog Modules | IS200/DS200 Excitation Cards, IC693/IC695/IC697/IC698/IC200/IC660/IC670 Series |
| 9 | YOKOGAWA | Japan | DCS Systems, CPU Modules, I/O Cards | CENTUM CS3000, CS1000, VP Series |
| 10 | HIMA | Germany | Safety Control Systems, SIL Safety Modules | H41q/H51q, HIMax, HIMatrix Series |
| 11 | EMERSON | USA | DCS Systems, Redundant Controllers, Safety Systems | Ovation, DeltaV Dual-Channel Redundant Safety Systems |
| 12 | Honeywell | USA | DCS Systems, Process Control Modules | Experion PKS/LS/HS, Plant Scape, TDC2000, TDC3000, TPS, Alcont |
| 13 | ICS TRIPLEX | UK | Trusted Safety Control Systems, TMR Modules | Trusted System, T8000 Series |
| 14 | Kollmorgen | USA | Servo Drives, Servo Motors, Motion Control | S700, S300, AKD Series Drives, Servo Motors |
| 15 | PROSOFT | USA | Industrial Communication Modules, Protocol Gateways | MVI69, MVI56, MVI94, MVI71, MVI46, PS69, 3150 Series |
| 16 | Alstom | France | Power Control, Protection Relays, Control Systems | GEC ALSTHOM, Protection and Control Modules |
| 17 | EATON | USA | Electrical Control, PLC, Power Supplies, Circuit Breakers | XC/XN Series PLC, Moeller Series, Power Supply Modules |
| 18 | Allen-Bradley (Rockwell) | USA | PLC Controllers, I/O Modules, Communication Modules | ControlLogix 1756, CompactLogix 1769, SLC 500 1747/1746, PLC-5 1771/1785 |
| 19 | Schneider | France | PLC, Modicon Series, CPU/Communication Modules | Quantum 140, Modicon M340, Modicon Premium |
————————Shenzhen Changxin Automation Equipment Co Ltd -————————
Products that have been released are welcome for consultation. Due to the wide variety of models, we were unable to upload physical images one by one!
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Parameter Specifications
| Parameter | Specification |
|---|---|
| Part Number | 3BHE014557R6104 |
| Product Type | Discrete Digital Input / Output Board (DIO) |
| Brand | ABB |
| Series | UNITROL 1000 Excitation Control System |
| Board Version | B-Z V104 |
| Digital Input Channels | 16 DI |
| DI Signal Type | Dry contact / 24V DC sensing |
| DI Sensing Voltage | 24V DC |
| Digital Output Channels | 12 DO Relay Output |
| Relay Contact Rating | 250V AC, 5A per channel |
| System Bus | UNITROL1000 internal backplane bus |
| Power Supply | 24V DC, range 18 ~ 30V DC |
| Power Consumption | Max 4.2W |
| Communication Interface | RS232 / RS485 onboard interface |
| Galvanic Isolation | Field side and control logic isolation, 1500V AC |
| Diagnostics | Wire break detection, relay fault, bus communication fault, module power fault |
| Operating Temperature | -20℃ ~ +60℃ |
| Storage Temperature | -40℃ ~ +85℃ |
| Relative Humidity | 5% ~ 95%, non-condensing |
| Vibration Resistance | IEC 60068-2-6 |
| Shock Resistance | IEC 60068-2-27 |
| Mounting | Rack slot mounting, plug-in backplane installation |
| Protection Class | IP20 (installed inside control cabinet) |
| Dimensions (W×H×D) | 280 mm × 230 mm × 30 mm |
| Net Weight | 0.72 kg |
| Certifications | CE, TÜV, IEC 61850 related |
| Lifecycle Status | Discontinued, spare parts supply only |







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