Description
VMIVME-3801-100C: Product Overview
The GE VMIVME-3801-100C is a VMEbus series central processing unit (CPU) card designed for industrial automation and embedded control applications. As part of GE’s VMEbus ecosystem, it leverages the VME64 standard to provide reliable, real-time computing power for systems requiring high durability and compatibility with legacy VMEbus architectures.
Role in Automation Systems:
Positioned as the “brain” of VMEbus-based control systems, the VMIVME-3801-100C performs three primary functions:
-
Data Processing: Executes control algorithms and processes data from field devices (e.g., sensors, actuators) via the VMEbus.
-
Communication: Acts as a system controller or peripheral CPU, enabling communication between VMEbus devices (e.g., I/O modules, displays) and external networks.
-
Legacy Support: Serves as a drop-in replacement for older VMEbus CPU cards, extending the lifespan of existing industrial systems without requiring major upgrades.
Core Functionality:
-
VMEbus Compatibility: Conforms to VMEbus Rev. C.1, ensuring seamless integration with VME64 backplanes and devices. The transparent PCI-to-VMEbus bridge allows it to function as a system controller or peripheral CPU in multi-CPU systems.
-
Flexible I/O: Includes 2× 16-bit programmable timers for timing-critical applications and a PMC expansion site for adding custom I/O (e.g., fiber optics, AI accelerators).
-
Non-Volatile Storage: 32 KB non-volatile SRAM retains critical data during power outages, ensuring system reliability in industrial environments.
-
Passive Cooling: Designed for passive cooling (no fans), reducing maintenance requirements and improving durability in dusty or high-vibration environments.
Platform Benefits (VMEbus Series):
The VMIVME-3801-100C benefits from GE’s VMEbus platform, which is renowned for:
-
Reliability: Industrial-grade components and a rugged 6U Eurocard form factor ensure 24/7 operation in harsh environments (e.g., high temperature, vibration).
-
Scalability: Supports expansion via PMC modules, allowing users to add functionality (e.g., additional I/O, networking) without replacing the CPU card.
-
Legacy Integration: Compatible with existing VMEbus systems, reducing the cost and complexity of upgrading industrial control architectures.
GE VMIVME-7700RC
Technical Specifications
-
Model Number: VMIVME-3801-100C (Variant of VMIVME-3801 series)
-
Manufacturer: GE (General Electric)
-
Product Type: VMEbus Series CPU Card
-
Form Factor: 6U Eurocard (160 mm × 233 mm)
-
Bus Standard: VMEbus Rev. C.1 (supports 2eSST @ 320 MB/s)
-
Processor: Likely Intel ULV Celeron (400 MHz/650 MHz) (inferred from similar VMEbus CPU cards)
-
Chipset: Intel 815E (inferred from similar VMEbus CPU cards)
-
Memory: On-board RAM (varies by configuration; expandable via PMC)
-
Storage: Optional bootable flash (up to 1 GB via auxiliary IDE)
-
I/O Ports:
-
2× 16-bit programmable timers
-
32 KB non-volatile SRAM
-
PMC expansion site (for custom I/O)
-
-
Operating Temperature: 0°C to +70°C (32°F to 158°F)
-
Storage Temperature: -40°C to +85°C (-40°F to 185°F)
-
Humidity: 5–95% non-condensing
-
Power Consumption: 15W typical (5V DC)
-
Certifications: CE, UL (inferred from GE industrial product standards)
Core Features & Customer Value
1. Legacy System Compatibility:
The VMIVME-3801-100C is designed to replace older VMEbus CPU cards (e.g., VMIVME-7750), allowing facilities to extend the life of their existing industrial control systems. This reduces the cost and downtime associated with migrating to new architectures.
2. Rugged Industrial Design:
The 6U Eurocard form factor and passive cooling make the VMIVME-3801-100C suitable for harsh industrial environments (e.g., turbine halls, manufacturing plants). Its lack of moving parts (fans) reduces maintenance requirements and improves reliability.
3. Flexible Expansion:
The PMC expansion site allows users to add custom I/O or functionality (e.g., fiber optic communication, AI acceleration) without replacing the CPU card. This scalability is critical for adapting to changing system demands.
4. Reliable Data Retention:
The 32 KB non-volatile SRAM retains critical data during power outages, ensuring that control systems can resume operation quickly after a failure. This is essential for industrial applications where downtime can result in significant financial losses.

GE VMIVME-7700RC
Typical Applications
The GE VMIVME-3801-100C is widely used in industrial automation systems for:
-
Manufacturing:
-
Controls assembly lines, robotic arms, and other automated equipment in factories.
-
Processes data from sensors (e.g., temperature, pressure) to optimize production efficiency.
-
-
Power Generation:
-
Manages turbine control systems in gas/steam power plants, ensuring stable power output.
-
Interfaces with VMEbus I/O modules to monitor and control generator parameters.
-
-
Chemical Processing:
-
Controls valves, pumps, and other equipment in chemical plants, ensuring safe and efficient operation.
-
Processes data from hazardous area sensors (e.g., flame detectors) to prevent accidents.
-


