ABB 07DC91 GJR5251400R0202 Digital I/O Module – Advant Controller 31 Series
Imagine a critical production line suddenly halting because a single I/O module fails to communicate with the controller. Alarms cascade across the HMI, operators scramble, and every minute of downtime translates directly into lost revenue and missed delivery commitments. In distributed control systems built on the ABB Advant Controller 31 platform, the 07DC91 (GJR5251400R0202) I/O unit is the nerve ending that connects field instruments to the control brain — without it, the system is blind and mute. Its reliability is not optional; it is the foundation of continuous operation.
Within the Advant Controller 31 (AC31) family, the 07DC91 occupies a core position as a dedicated digital I/O unit, designed to interface directly with field-level signals in process and discrete manufacturing environments. ABB’s AC31 platform has been deployed across power generation, pulp & paper, water treatment, and chemical processing facilities worldwide for decades, earning a reputation for deterministic performance and long service life. The GJR5251400R0202 part number identifies the specific hardware revision, ensuring full backward compatibility with existing AC31 rack installations.
Technical Specifications
- Manufacturer: ABB
- Part Number / SKU: 07DC91 | GJR5251400R0202
- Series: Advant Controller 31 (AC31)
- Module Type: Digital I/O Unit
- Form Factor: Rack-mount module, AC31 backplane compatible
- Weight: Approx. 300 g
- Operating Environment: Industrial-grade; suitable for panel and cabinet installation
- Communication: Integrated via AC31 system bus
- Note: Detailed electrical specifications (voltage range, channel count, isolation class) should be confirmed against the official ABB 07DC91 datasheet prior to installation.
Key Features & Benefits
- Seamless AC31 Integration: Plug-and-play compatibility with the Advant Controller 31 backplane — no additional interface hardware required.
- Deterministic Signal Processing: Designed for real-time industrial environments where scan-cycle consistency is critical to process safety and quality.
- Long-lifecycle Design: ABB’s AC31 modules are engineered for extended service, reducing the total cost of ownership in legacy system maintenance scenarios.
- Robust Construction: Industrial-grade components rated for the thermal and EMI conditions typical of control cabinets in heavy industry.
- Direct Replacement Availability: Sourced as an OEM-equivalent spare, enabling fast like-for-like replacement without system reconfiguration.
Industry & Equipment Applications
- Power Generation: Turbine control panels and auxiliary system monitoring using AC31-based DCS architectures.
- Pulp & Paper: Process line I/O for digester controls, bleaching stages, and paper machine drives.
- Water & Wastewater Treatment: Pump station automation and SCADA-integrated field I/O in municipal and industrial water systems.
- Chemical & Petrochemical: Reactor monitoring and safety interlock systems requiring reliable digital signal acquisition.
- Discrete Manufacturing: Assembly line control and machine safety circuits integrated into AC31 controller networks.
System Integration & Compatible Parts
The 07DC91 is designed to operate within the broader ABB Advant Controller 31 ecosystem. Compatible system components typically include:
- AC31 Central Processing Units (CPUs) and communication processors
- AC31 power supply modules and backplane racks
- Other 07-series I/O modules (analog input, analog output, digital output variants)
- ABB Advant OCS / Master Bus 300 communication interfaces
If you require a complete spare parts list or system expansion modules, contact our technical team — we maintain an extensive inventory of AC31 series components.
Our Quality Assurance Process
- Source Verification: All modules are sourced from traceable supply chains including authorized distributors and decommissioned OEM installations.
- Visual & Functional Inspection: Each unit undergoes physical inspection for component integrity, connector condition, and label authenticity before listing.
- Secure Packaging: Anti-static packaging with foam cushioning ensures modules arrive in the same condition they leave our warehouse.
- Documentation: Available test reports and sourcing documentation provided upon request for regulated industries.
How to Order
- Submit an inquiry via the Contact / Request a Quote form on this page.
- Include your required quantity, delivery timeline, and destination country.
- Our team will respond within 1 business day with availability confirmation, lead time, and a formal quotation.
- Upon order confirmation, we arrange secure export packaging and provide shipping documentation (commercial invoice, packing list, and certificate of origin as required).
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on DCS, PLC, and industrial control components — not a generalist marketplace.
- Global Export Experience: Serving buyers in Europe, Southeast Asia, the Middle East, and the Americas with compliant cross-border shipping.
- Responsive Technical Support: Our team includes engineers with hands-on experience in ABB AC31 and comparable platforms.
- Competitive Lead Times: In-stock items typically ship within 3–5 business days; sourced items within agreed lead times.
- Transparent Communication: No hidden fees. Clear quotations, honest availability status, and proactive shipment updates.
Frequently Asked Questions
Q: Is the 07DC91 GJR5251400R0202 a new or refurbished unit?
A: We stock both new-old-stock (NOS) and professionally inspected refurbished units depending on availability. The condition is clearly stated in your quotation.
Q: Can this module replace an existing 07DC91 in my AC31 rack without reprogramming?
A: In most cases, yes — the GJR5251400R0202 revision is a direct hardware replacement. However, we recommend verifying firmware compatibility with your system integrator before installation.
Q: Do you provide a warranty?
A: Yes. We offer a standard 90-day warranty against hardware defects. Extended warranty options are available — please inquire when requesting a quote.
Q: Can you supply multiple units for a plant-wide spare parts program?
A: Yes. We accommodate bulk orders and long-term supply agreements. Contact us to discuss volume pricing and scheduled delivery arrangements.
Q: What shipping methods are available for international orders?
A: We ship via DHL Express, FedEx International, and sea freight for larger orders. All shipments include tracking and export documentation.
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