Motorola MVME709-1

Description

Detailed Parameter Table

Motorola MVME147-013

Product Introduction

The **Motorola MVME709-1** is a high-density 3U VMEbus intelligent serial communication module engineered for industrial automation systems requiring robust and flexible serial connectivity. As a key member of Motorola’s MVME700 series, it leverages the MC68360 Quad Integrated Communication Controller (QUICC) to manage up to 8 configurable serial ports, delivering reliable data transmission for mission-critical communication tasks.

Equipped with 512 KB SRAM for data buffering and 256 KB Flash EPROM for program storage, the **Motorola MVME709-1** ensures efficient handling of serial data streams while supporting on-module firmware updates. Its VMEchip2 interface enables seamless integration into VMEbus-based control systems as a slave device, facilitating easy communication with host CPUs. With broad protocol support and a wide operating temperature range of -40°C to +85°C, this module is ideal for connecting distributed sensors, actuators, and peripheral devices in harsh industrial environments.

Core Advantages & Technical Highlights

High-Density Serial Connectivity: Featuring 8 configurable RS-232/422/485 ports, the **Motorola MVME709-1** maximizes serial communication capacity within a single 3U VME slot. This high port density reduces chassis space requirements and cabling complexity, lowering overall system deployment costs while simplifying maintenance.

Intelligent Communication Processing: The MC68360 QUICC processor offloads serial communication tasks from the host CPU, freeing up valuable processing resources for core control functions. It handles protocol framing, error detection, and data buffering independently, ensuring smooth and efficient data transfer even under high communication loads.

Flexible Protocol Compatibility: Supporting a wide range of serial protocols including Modbus RTU, ASCII, and HDLC, the **Motorola MVME709-1** seamlessly integrates with diverse industrial devices such as PLCs, HMIs, and sensor networks. Each port can be individually configured for different protocols and data rates (up to 115.2 kbps), adapting to varied application requirements.

Industrial-Grade Reliability: Designed to operate in -40°C to +85°C environments, the **Motorola MVME709-1** withstands extreme temperatures, vibration, and electromagnetic interference (EMI) common in industrial settings. Its rugged construction ensures stable communication performance in applications like manufacturing plants, oil refineries, and transportation systems.

Comprehensive Diagnostics: Built-in loopback testing, port status monitoring, and error logging capabilities simplify troubleshooting and maintenance. Users can quickly identify communication issues, track error rates, and verify port functionality without disrupting system operation, minimizing downtime and improving system availability.

Typical Application Scenarios

Factory Automation Networks: In automotive assembly plants, the **Motorola MVME709-1** serves as a central serial hub, connecting distributed I/O modules, robotic controllers, and quality inspection devices via RS-485. It uses Modbus RTU to transmit real-time production data to the host PLC, enabling centralized monitoring and control of assembly line operations. The module’s high port density reduces the number of communication cards needed, streamlining system architecture.

Oil & Gas Monitoring Systems: In offshore drilling platforms, the **Motorola MVME709-1** connects pressure, temperature, and flow sensors located across the platform using RS-422 for long-distance, noise-immune communication. It buffers sensor data locally in SRAM before transmitting it to the main control system, ensuring data integrity even in harsh maritime environments with extreme temperature fluctuations and EMI.

Building Automation & Infrastructure: In large commercial buildings, the module integrates HVAC systems, access control panels, and fire alarm devices via RS-232/485. It uses ASCII protocol to exchange status information and control commands, enabling centralized management of building services. The diagnostic features allow facility managers to proactively identify communication failures in critical systems like fire alarms, enhancing safety and operational efficiency.

Railway Signaling Systems: In railway networks, the **Motorola MVME709-1** connects trackside sensors, switch controllers, and signal lights using RS-485. It transmits status data to the central traffic management system, ensuring reliable communication even in environments with high vibration and electrical noise. The module’s rugged design withstands the harsh operating conditions of railway yards and remote track sections.

Motorola MVME147-013

Related Model Recommendations

Motorola MVME709-2: Higher-port variant with 16 serial ports, suitable for large-scale communication networks requiring expanded connectivity.

Motorola MVME162-01: 3U VMEbus CPU module compatible with **Motorola MVME709-1**, serving as the host controller for serial communication data processing.

Motorola MVME712M: Profibus-DP communication module, complementary to **Motorola MVME709-1** for integrating serial devices into Profibus networks.

GE VMIVME-7650: Analog I/O module paired with **Motorola MVME709-1** to add analog data acquisition capabilities to serial-based control systems.

Motorola MVME2300: Ethernet-to-serial gateway module, working with **Motorola MVME709-1** to bridge serial devices to Ethernet-based industrial networks.

Motorola MVME197LE: Memory expansion module for host CPUs, increasing data storage capacity for large volumes of serial communication data processed by **Motorola MVME709-1**.

Installation & Maintenance Guidelines

Installation Preparation: Before installing the **Motorola MVME709-1**, ensure the VMEbus chassis is powered off and properly grounded. Align the module with the 3U slot guides, verifying that the P1/P2 backplane connectors are correctly aligned. Gently insert the module until fully seated, then fasten the front-panel screws to prevent vibration-induced disconnections. For serial cabling, use shielded twisted-pair cables for RS-422/485 ports and ensure proper termination (120Ω resistor) at the end of the bus.

Maintenance Best Practices: Perform quarterly inspections to clean dust from the module’s connectors and front-panel ports using compressed air. Regularly check port status indicators to identify abnormal conditions (e.g., excessive errors). Use the built-in loopback test feature monthly to verify port functionality. Back up the Flash EPROM firmware annually to prevent data loss during updates. When replacing cables, use industry-standard serial cables with proper shielding to maintain communication reliability. Use only genuine Motorola spare parts to ensure VMEbus compatibility and performance.

Service & Warranty Commitment

The **Motorola MVME709-1** is backed by a 2-year manufacturer’s warranty covering defects in materials and workmanship under normal industrial operation. Motorola’s technical support team provides professional assistance via email and phone, with response times within 24 hours for critical issues and 48 hours for general inquiries. We offer remote diagnostic services to troubleshoot communication problems, minimizing on-site service costs. For legacy systems, we provide firmware update and module repair services to extend product lifecycle. Our commitment to quality ensures that the **Motorola MVME709-1** delivers consistent, reliable serial communication, protecting your investment in industrial automation infrastructure.