1. Overview
The XYCOM 99566-021 is an industrial operator interface panel belonging to the XYCOM 9403 series, classified as a digital input/output (I/O) module. It is widely used in the assembly of field human-machine interface (HMI) and process control systems. Featuring a modular and hot-swappable design, this panel is compatible with bus platforms such as XYCOM XVME and VME-AT, enabling rapid deployment in cabinets or on DIN rails.
2. Key Technical Specifications
| Parameter |
Specification |
| Model |
99566-021 (9403) |
| Power Supply |
115/230 V AC, 50/60 Hz |
| Input/Output |
Multi-channel digital I/O |
| Interfaces |
Industrial communication interfaces including RS-485 and Ethernet (10/100 Mbps) |
| Protection Class |
IP65 (dustproof and waterproof) |
| Operating Temperature |
–20 °C – +60 °C |
| Dimensions (W×D×H) |
Approx. 150 mm × 100 mm × 50 mm |
| Weight |
Approx. 1.2 kg |
3. Product Features
- Modular Hot-Swappable Design: Supports replacement of faulty modules without interrupting system power supply, minimizing downtime.
- Multi-Interface Compatibility: Built-in RS-485 and 10/100 Mbps Ethernet ports for seamless integration with PLCs, host computers, and SCADA systems.
- High Protection Level: IP65-rated enclosure, ideal for harsh industrial environments with dust and water splashes.
- Wide Operating Temperature Range: Functions stably within –20 °C to +60 °C, suitable for workshops, outdoor sites, and other application scenarios.
- Low Power Consumption & Efficient Heat Dissipation: Passive cooling structure reduces energy consumption and extends service life.
4. Structure and Components
- Front Panel: Equipped with an optional LCD/LED display, plus a keypad or touch area, designed for on-site operation and status monitoring.
- Backplane: Integrates power module, communication interface card, and digital I/O expansion card.
- Cabinet/DIN Rail Mounting Brackets: Provide secure mechanical fixation, compatible with standard 19-inch cabinets and DIN rails.
- Heat Sinks: Metal heat sinks are attached to the power supply and main control chips to ensure thermal balance during long-term operation.
5. Typical Application Fields
- Process Control: On-site monitoring and parameter adjustment for continuous production processes in chemical, petroleum, and natural gas industries.
- Manufacturing: Local control and status display for CNC machine tools and robot workstations.
- Building/Facility Management: Centralized monitoring of HVAC, lighting, and security systems.
- Power Systems: Operator panel for substations and distribution automation.
- Water Treatment & Environmental Protection: HMI terminal for sewage treatment plants and waste gas monitoring systems.
6. Installation and Maintenance Guidelines
Installation
- Location Selection: Choose a well-ventilated area away from direct sunlight and strong magnetic fields; position the panel front-facing the operators.
- Fixation Method: Mount the panel on cabinets or DIN rails after power-off, ensuring unobstructed heat dissipation channels.
- Wiring: Connect power supply, communication cables (RS-485/Ethernet), and I/O terminals according to the wiring diagram; verify secure plug-in connections.
- Commissioning: After power-on, check power indicator lights and communication status; configure parameters using the manufacturer-provided configuration software.
Routine Maintenance
- Regularly inspect power supply stability, interface connections, and dust accumulation on heat sinks.
- Replace faulty modules via hot-swappable method to avoid overall system shutdown.
- Record operation logs and update firmware timely to obtain the latest functions and security patches.
————————————————————————————————————-
If you would like to learn more about our products and services, please feel free to contact us at any time!
- Sales Manager : Jinny
- Email : sales5@xrjdcs.com
- Whatsapp/Mobile:+86 15359273791
Global renowned brand cooperation
ABB 丨 GE 丨Allen Bradley 丨 Honeywell 丨 Emerson 丨 Bently Nevada 丨 Westinghouse
Triconex 丨 Foxboro 丨 ICS Triplex 丨 Hima 丨 Schneider 丨 Yokogawa 丨 Woodward
—————————————————————————————

Professional Supplier of Large-Scale Control Systems & Imported Module Spare Parts
We are a professional company dedicated to the sales of large-scale control systems and imported module spare parts. For years, we have been committed to delivering high-quality automation system solutions to our clients. Covering renowned brands such as ABB, FOXBORO and TOSHIBA, as well as a wide range of imported module spare parts, we provide customers with one-stop service to meet diverse operational needs. Guided by the principle of ”Creating Value for Customers”, we continuously expand our business scope and have earned the trust of a broad customer base.
About Logistics
-
Geographical AdvantageHeadquartered in Xiamen, a key port city, we leverage convenient sea, air and land transportation networks to realize fast domestic and international deliveries, significantly shortening lead times.
-
Global Logistics NetworkWe cooperate with world-leading logistics companies to offer multiple transportation options, including sea freight and air freight, ensuring that goods are delivered to destinations across the globe safely and efficiently.
-
Flexible Shipping SolutionsTailored to customer requirements, we provide diverse logistics plans such as door-to-door delivery, less than container load (LCL) and full container load (FCL), helping clients reduce costs and enhance operational efficiency.
-
Real-Time Logistics TrackingWe support real-time cargo tracking, enabling customers to monitor the transportation status at any time and guaranteeing on-time delivery.
-
Professional Customs Clearance ServicesOur team provides fast customs declaration and tariff consulting services, ensuring smooth customs clearance for international shipments and minimizing delivery delays.
-
High-Standard PackagingWe adopt international-standard packaging to protect goods from damage during transit. Customized packaging solutions are also available to meet specific customer needs.

Previous:
XYCOM CPU-XVME-675 Processor Module
Next:
XYCOM 97957-101 Panel Module